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Finding the Third Proportional to 12,749 and 27,451

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Solution

The third proportional to 12,749 and 27,451 is: 59,107.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749 : 27,451 = 27,451 : x
  2. Step 2: Convert to fraction form
    12,749/27,451 = 27,451/x
  3. Step 3: Cross multiply
    12,749x = 27,451 × 27,451
  4. Step 4: Simplify right side
    12,749x = 753,557,401
  5. Step 5: Solve for x
    x = 753,557,401/12,749
  6. Step 6: Final answer
    x = 59,107.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.