B: clearly, production ratios are not always going to come out all as whole numbers. Here, wa calculate multiples of the calculated production ratio to see if we can more closely approach a ratio that has all, or at least more whole numbers.C: ultimately, the lean practitioner has to pragmatically select an " optimal" production ratio- one in which all product ratio value are/ close to whole numbers without generating something that will create a really long Ch. for example, a 5:3:2 ratio, with a string of 10 units within the repeating cycle is a lot more manageable than a 12:8:5 ratio, with 25 units within the repeating cycle.D. acknowledging that the production ratio is rarely, if ever, perfect, it's helpful to understand what kind of cyclical adjustment may be needed to be made to even out Ch over time. the example above indicates that in order to keep the mix in proper proportion, every 9 complete cycles of Ch, an additional B will have to be introduced. Every 7, or so cycles, 2 A's will have to be removed. again, the desire here is to select an adjustment number that is as close to a whole number as possible. Bottom line, good simple and visual heijunka standard work will help folks effectively deal with real- life variation. Math can ( and should) only do so much
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