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Finding the Third Proportional to 20,124,086 and 31,381,867

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Solution

The third proportional to 20,124,086 and 31,381,867 is: 48,937,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,086 : 31,381,867 = 31,381,867 : x
  2. Step 2: Convert to fraction form
    20,124,086/31,381,867 = 31,381,867/x
  3. Step 3: Cross multiply
    20,124,086x = 31,381,867 × 31,381,867
  4. Step 4: Simplify right side
    20,124,086x = 984,821,576,405,689
  5. Step 5: Solve for x
    x = 984,821,576,405,689/20,124,086
  6. Step 6: Final answer
    x = 48,937,456.16

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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.