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{{ printedBook.courseTrack.name }} {{ printedBook.name }} In a geometric sequence, we multiply an element, by a factor $r$ to get the next element. From the terms of the sequence, we see that the first number is $2,$ the second is $2⋅3,$ and the third is $2⋅3_{2}.$ The factor to multiply by then is $3.$ Thus, in order to get the next number, we multiply $2⋅3_{2}$ by $3.$ $2⋅3_{2}⋅3=2⋅3_{3}.$