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Finding the Third Proportional to 8,472 and 11,766

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Solution

The third proportional to 8,472 and 11,766 is: 16,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472 : 11,766 = 11,766 : x
  2. Step 2: Convert to fraction form
    8,472/11,766 = 11,766/x
  3. Step 3: Cross multiply
    8,472x = 11,766 × 11,766
  4. Step 4: Simplify right side
    8,472x = 138,438,756
  5. Step 5: Solve for x
    x = 138,438,756/8,472
  6. Step 6: Final answer
    x = 16,340.74

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.