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Finding the Third Proportional to 9,372 and 16,680

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Solution

The third proportional to 9,372 and 16,680 is: 29,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372 : 16,680 = 16,680 : x
  2. Step 2: Convert to fraction form
    9,372/16,680 = 16,680/x
  3. Step 3: Cross multiply
    9,372x = 16,680 × 16,680
  4. Step 4: Simplify right side
    9,372x = 278,222,400
  5. Step 5: Solve for x
    x = 278,222,400/9,372
  6. Step 6: Final answer
    x = 29,686.56

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.