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How to compare these measurements?
If 19 mm equals 100 km, and on the map the distance is 17 mm, how many km is it? Is there an equation to set up to find this?
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- StanSLv 61 decade agoFavorite Answer
You have to set up a proportion:
19 is to 100 as 17 is to x.
19/100 = 17/x
and then cross multiply:
19x = 1700
x = 1700/19
x = 89.47km
.
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