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Finding the Fourth Proportional to 8,641,757.67, 12,962,640.83 and 2,251,993.83

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Solution

The fourth proportional to 8,641,757.67, 12,962,640.83 and 2,251,993.83 is: 3,377,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641,757.67 : 12,962,640.83 = 2,251,993.83 : x
  2. Step 2: Convert to fraction form
    8,641,757.67/12,962,640.83 = 2,251,993.83/x
  3. Step 3: Cross multiply
    8,641,757.67x = 12,962,640.83 × 2,251,993.83
  4. Step 4: Simplify right side
    8,641,757.67x = 29,191,787,169,666.08
  5. Step 5: Solve for x
    x = 29,191,787,169,666.08/8,641,757.67
  6. Step 6: Final answer
    x = 3,377,991.87

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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.