such as : If 1/4 inch on a map represents 8 miles, how many miles are represented by 3 and 3/4 inches on the map?
The easiest way to set this up is as a proportion:
3 3/4 x
------ = ------- where x is the unknown number of miles represented by 3 3/4 inches
(1/4) 8
The ratio of 3 3/4 inches to 1/4 inch is the same as the unknown x miles is to 8 miles. Now solve for x.
Well since the answer cat is now out of the bag, I'll go ahead and solve for x:
8*4*(15/4) = x
8*15 = x
120 miles = x
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