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Finding the Third Proportional to 15,764 and 25,398

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Solution

The third proportional to 15,764 and 25,398 is: 40,919.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764 : 25,398 = 25,398 : x
  2. Step 2: Convert to fraction form
    15,764/25,398 = 25,398/x
  3. Step 3: Cross multiply
    15,764x = 25,398 × 25,398
  4. Step 4: Simplify right side
    15,764x = 645,058,404
  5. Step 5: Solve for x
    x = 645,058,404/15,764
  6. Step 6: Final answer
    x = 40,919.72

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.