Answer
$x = 8$
Work Step by Step
$\frac{7}{x}$ = $\frac{21}{24}$
$7\times24 = x\times21$
$168 = 21x$
$x = 8$
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 5 - Section 5.1 - Ratios, Rates, and Proportions - Exercises - Page 228: 5b
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