Answer
a) 3 and 6
b) x and 9
c) 18
d) 9x
Work Step by Step
The means are the 2nd and 3rd terms.
The extremes are the 1st and 4th terms.
$3\times6=18$
$x \times9=9x$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 7 - Section 7.2 - Proportion - Exercises - Page 276: 4
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