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Finding the Fourth Proportional to 9,661,092.70, 14,491,639.05 and 3,979,428.70

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Solution

The fourth proportional to 9,661,092.70, 14,491,639.05 and 3,979,428.70 is: 5,969,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661,092.70 : 14,491,639.05 = 3,979,428.70 : x
  2. Step 2: Convert to fraction form
    9,661,092.70/14,491,639.05 = 3,979,428.70/x
  3. Step 3: Cross multiply
    9,661,092.70x = 14,491,639.05 × 3,979,428.70
  4. Step 4: Simplify right side
    9,661,092.70x = 57,668,444,345,610.74
  5. Step 5: Solve for x
    x = 57,668,444,345,610.74/9,661,092.70
  6. Step 6: Final answer
    x = 5,969,143.05

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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.