An infinite geometric progression a1, a2, a3, … has the property that an = 3(a

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An infinite geometric progression a1, a2, a3, … has the property that an = 3(an+1 + an+2 + … ) for every n>= 1. If the sum a1 + a2 + a3 + … + = 32, then a5 is

A. 11689
B. 11720
C. 11749
D. 11780

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