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What is the common ratio between successive terms in the sequence 27 9 3 1?

Published in Geometric Sequences 1 min read

The common ratio between successive terms in the sequence 27, 9, 3, 1 is 1/3.

This sequence is a geometric sequence, which means each term is found by multiplying the previous term by a constant value. This constant value is the common ratio.

To find the common ratio in the given sequence, we can divide any term by the term that precedes it:

  • 9 / 27 = 1/3
  • 3 / 9 = 1/3
  • 1 / 3 = 1/3

As shown by the calculations above, the common ratio is consistently 1/3.

Here is a breakdown in a table format:

Term Value Calculation Common Ratio
1st 27
2nd 9 9 / 27 = 1/3 1/3
3rd 3 3 / 9 = 1/3 1/3
4th 1 1 / 3 = 1/3 1/3

The reference provided also confirms this, stating: "The common ratio between successive terms in the sequence 27, 9, 3, 1,... is 1/3."

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