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Finding the Third Proportional to 20,193,474 and 31,327,331

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Solution

The third proportional to 20,193,474 and 31,327,331 is: 48,599,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193,474 : 31,327,331 = 31,327,331 : x
  2. Step 2: Convert to fraction form
    20,193,474/31,327,331 = 31,327,331/x
  3. Step 3: Cross multiply
    20,193,474x = 31,327,331 × 31,327,331
  4. Step 4: Simplify right side
    20,193,474x = 981,401,667,583,561
  5. Step 5: Solve for x
    x = 981,401,667,583,561/20,193,474
  6. Step 6: Final answer
    x = 48,599,942.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.