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Finding the Third Proportional to 9,916 and 14,711

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Solution

The third proportional to 9,916 and 14,711 is: 21,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916 : 14,711 = 14,711 : x
  2. Step 2: Convert to fraction form
    9,916/14,711 = 14,711/x
  3. Step 3: Cross multiply
    9,916x = 14,711 × 14,711
  4. Step 4: Simplify right side
    9,916x = 216,413,521
  5. Step 5: Solve for x
    x = 216,413,521/9,916
  6. Step 6: Final answer
    x = 21,824.68

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.