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Finding the Fourth Proportional to 6,479,713.92, 9,729,558.72 and 5,481,947.52

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Solution

The fourth proportional to 6,479,713.92, 9,729,558.72 and 5,481,947.52 is: 8,231,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479,713.92 : 9,729,558.72 = 5,481,947.52 : x
  2. Step 2: Convert to fraction form
    6,479,713.92/9,729,558.72 = 5,481,947.52/x
  3. Step 3: Cross multiply
    6,479,713.92x = 9,729,558.72 × 5,481,947.52
  4. Step 4: Simplify right side
    6,479,713.92x = 53,336,930,295,798.38
  5. Step 5: Solve for x
    x = 53,336,930,295,798.38/6,479,713.92
  6. Step 6: Final answer
    x = 8,231,371.16

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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.