SOLUTION: Find k,given that 32,k,3; are consecutive terms of an arithmetic sequence

Question 953904: Find k,given that 32,k,3; are consecutive terms of an arithmetic sequence
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
Since the terms are in arithmetic sequence,the middle term is equal to average of first and the last term.
so, for ,,the middle term or as decimal
or this way:
It's an arithmetic sequence so the difference between consecutive terms is constant.
the first difference is and the second difference is , so we have

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