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Finding the Third Proportional to 667 and 976

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Solution

The third proportional to 667 and 976 is: 1,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    667 : 976 = 976 : x
  2. Step 2: Convert to fraction form
    667/976 = 976/x
  3. Step 3: Cross multiply
    667x = 976 × 976
  4. Step 4: Simplify right side
    667x = 952,576
  5. Step 5: Solve for x
    x = 952,576/667
  6. Step 6: Final answer
    x = 1,428.15

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.