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Finding the Fourth Proportional to 56,690.57, 84,906.24 and 27,129.17

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Solution

The fourth proportional to 56,690.57, 84,906.24 and 27,129.17 is: 40,631.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.57 : 84,906.24 = 27,129.17 : x
  2. Step 2: Convert to fraction form
    56,690.57/84,906.24 = 27,129.17/x
  3. Step 3: Cross multiply
    56,690.57x = 84,906.24 × 27,129.17
  4. Step 4: Simplify right side
    56,690.57x = 2,303,435,819.02
  5. Step 5: Solve for x
    x = 2,303,435,819.02/56,690.57
  6. Step 6: Final answer
    x = 40,631.73

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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.