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Finding the Third Proportional to 20,446 and 31,262

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Solution

The third proportional to 20,446 and 31,262 is: 47,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446 : 31,262 = 31,262 : x
  2. Step 2: Convert to fraction form
    20,446/31,262 = 31,262/x
  3. Step 3: Cross multiply
    20,446x = 31,262 × 31,262
  4. Step 4: Simplify right side
    20,446x = 977,312,644
  5. Step 5: Solve for x
    x = 977,312,644/20,446
  6. Step 6: Final answer
    x = 47,799.70

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.