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Finding the Fourth Proportional to 6,287,572.89, 9,431,358.12 and 2,691,007.65

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Solution

The fourth proportional to 6,287,572.89, 9,431,358.12 and 2,691,007.65 is: 4,036,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287,572.89 : 9,431,358.12 = 2,691,007.65 : x
  2. Step 2: Convert to fraction form
    6,287,572.89/9,431,358.12 = 2,691,007.65/x
  3. Step 3: Cross multiply
    6,287,572.89x = 9,431,358.12 × 2,691,007.65
  4. Step 4: Simplify right side
    6,287,572.89x = 25,379,856,850,809.61
  5. Step 5: Solve for x
    x = 25,379,856,850,809.61/6,287,572.89
  6. Step 6: Final answer
    x = 4,036,510.95

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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.