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Finding the Third Proportional to 9,418,872.38 and 20,280,780

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Solution

The third proportional to 9,418,872.38 and 20,280,780 is: 43,668,713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418,872.38 : 20,280,780 = 20,280,780 : x
  2. Step 2: Convert to fraction form
    9,418,872.38/20,280,780 = 20,280,780/x
  3. Step 3: Cross multiply
    9,418,872.38x = 20,280,780 × 20,280,780
  4. Step 4: Simplify right side
    9,418,872.38x = 411,310,037,408,400
  5. Step 5: Solve for x
    x = 411,310,037,408,400/9,418,872.38
  6. Step 6: Final answer
    x = 43,668,713.31

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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.