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Finding the Fourth Proportional to 41,078.13, 61,617.39 and 9,913.38

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Solution

The fourth proportional to 41,078.13, 61,617.39 and 9,913.38 is: 14,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,078.13 : 61,617.39 = 9,913.38 : x
  2. Step 2: Convert to fraction form
    41,078.13/61,617.39 = 9,913.38/x
  3. Step 3: Cross multiply
    41,078.13x = 61,617.39 × 9,913.38
  4. Step 4: Simplify right side
    41,078.13x = 610,836,601.68
  5. Step 5: Solve for x
    x = 610,836,601.68/41,078.13
  6. Step 6: Final answer
    x = 14,870.12

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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.