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Finding the Third Proportional to 13,931 and 29,932

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Solution

The third proportional to 13,931 and 29,932 is: 64,311.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931 : 29,932 = 29,932 : x
  2. Step 2: Convert to fraction form
    13,931/29,932 = 29,932/x
  3. Step 3: Cross multiply
    13,931x = 29,932 × 29,932
  4. Step 4: Simplify right side
    13,931x = 895,924,624
  5. Step 5: Solve for x
    x = 895,924,624/13,931
  6. Step 6: Final answer
    x = 64,311.58

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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.