Continuation 46483

Continuation of the number series 9,12,18,27

Correct answer:

a5 =  39

Step-by-step explanation:

a1=9 a2=12 a3=18 a4=27  q1=a2/a1=12/9=34=1311.3333 q2=a3/a2=18/12=23=121=1.5 q3=a4/a3=27/18=23=121=1.5  d1=a2a1=129=3 d2=a3a2=1812=6 d3=a4a3=2718=9 d4=d3+3=9+3=12  a5=a4+d4=27+12=39



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