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Finding the Fourth Proportional to 9,661,253.20, 14,491,879.80 and 3,979,589.20

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Solution

The fourth proportional to 9,661,253.20, 14,491,879.80 and 3,979,589.20 is: 5,969,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661,253.20 : 14,491,879.80 = 3,979,589.20 : x
  2. Step 2: Convert to fraction form
    9,661,253.20/14,491,879.80 = 3,979,589.20/x
  3. Step 3: Cross multiply
    9,661,253.20x = 14,491,879.80 × 3,979,589.20
  4. Step 4: Simplify right side
    9,661,253.20x = 57,671,728,339,778.16
  5. Step 5: Solve for x
    x = 57,671,728,339,778.16/9,661,253.20
  6. Step 6: Final answer
    x = 5,969,383.80

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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.