Answer
The width of the family room is 12 ft. The length is 18 ft.
Work Step by Step
Width
$3\ in\times\frac{4\ ft}{1\ in}$ = 12 ft
Length
$4.5\ in\times\frac{4\ ft}{1\ in}$ = 18 ft
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 5 - Ratio and Proportion - 5.5 Solving Application Problems with Proportions - 5.5 Exercises - Page 364: 16
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