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Finding the Third Proportional to 5,272 and 12,460

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Solution

The third proportional to 5,272 and 12,460 is: 29,448.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272 : 12,460 = 12,460 : x
  2. Step 2: Convert to fraction form
    5,272/12,460 = 12,460/x
  3. Step 3: Cross multiply
    5,272x = 12,460 × 12,460
  4. Step 4: Simplify right side
    5,272x = 155,251,600
  5. Step 5: Solve for x
    x = 155,251,600/5,272
  6. Step 6: Final answer
    x = 29,448.33

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.