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Finding the Fourth Proportional to 41,138.87, 61,708.29 and 9,974.12

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Solution

The fourth proportional to 41,138.87, 61,708.29 and 9,974.12 is: 14,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,138.87 : 61,708.29 = 9,974.12 : x
  2. Step 2: Convert to fraction form
    41,138.87/61,708.29 = 9,974.12/x
  3. Step 3: Cross multiply
    41,138.87x = 61,708.29 × 9,974.12
  4. Step 4: Simplify right side
    41,138.87x = 615,485,543.51
  5. Step 5: Solve for x
    x = 615,485,543.51/41,138.87
  6. Step 6: Final answer
    x = 14,961.17

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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.