In a geometric progression 1st term is 50.4th term is 1:50. find 5th term.
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Im not sure...but here you go
1:50 is 60+50=110
a1 = 50
a4 = 110
a4 = ar^n-1
a4 = 50 r^4-1 = 50 r^3 => 110 = 50 r^3
r= cuberoot 11/5
a5= 50(11/5)^4/3
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