In geometric sequence the 4th term is 54 the 7th term is 1458 what is the 12th term

asked Aug 14, 2018 162k views

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1 vote

Let the common ratio be r.
a4=54
a7=1458
r^3=1458/54=27
r=27^(1/3)=3
therefore
a12=a7*r(12-7)=a7*3^5
=354294

Runr answered Aug 21, 2018

by Runr

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