In Example 4, change “seventh” to “tenth.”

Data from Example 4

Find the seventh term of the geometric sequence for which the second term is 3, the fourth term is 9, and r > 0.
To get from the second term to the fourth term, we must multiply by the common ratio twice. Thus, 9 = 3r² , r = √3 (because r > 0) Now, to get from the fourth term to the seventh term, we must multiply by the common ratio 3 times. Therefore,

a7 = 9r3 =  9(√3)³ =27√3