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posted by Becca on Monday, April 8, 2013 at 10:23pm.
Find the common ratio r and the value of A1 with the information given. 1. A3=324 A7=64 2. A4=32/3 A8=54
A7/A3 = r^4 = 16/81, so r = 2/3 A8/A4 = r^4 = 54*3/32 = 81/16 = 3/2
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