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Finding the Third Proportional to 20,123,974 and 31,381,703

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Solution

The third proportional to 20,123,974 and 31,381,703 is: 48,937,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,974 : 31,381,703 = 31,381,703 : x
  2. Step 2: Convert to fraction form
    20,123,974/31,381,703 = 31,381,703/x
  3. Step 3: Cross multiply
    20,123,974x = 31,381,703 × 31,381,703
  4. Step 4: Simplify right side
    20,123,974x = 984,811,283,180,209
  5. Step 5: Solve for x
    x = 984,811,283,180,209/20,123,974
  6. Step 6: Final answer
    x = 48,937,217.03

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.