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Finding the Fourth Proportional to 7,898,337.20, 11,829,791.10 and 7,898,337.20

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Solution

The fourth proportional to 7,898,337.20, 11,829,791.10 and 7,898,337.20 is: 11,829,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898,337.20 : 11,829,791.10 = 7,898,337.20 : x
  2. Step 2: Convert to fraction form
    7,898,337.20/11,829,791.10 = 7,898,337.20/x
  3. Step 3: Cross multiply
    7,898,337.20x = 11,829,791.10 × 7,898,337.20
  4. Step 4: Simplify right side
    7,898,337.20x = 93,435,679,113,358.92
  5. Step 5: Solve for x
    x = 93,435,679,113,358.92/7,898,337.20
  6. Step 6: Final answer
    x = 11,829,791.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.