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Finding the Fourth Proportional to 57,496.78, 86,245.17 and 26,239.18

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Solution

The fourth proportional to 57,496.78, 86,245.17 and 26,239.18 is: 39,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,496.78 : 86,245.17 = 26,239.18 : x
  2. Step 2: Convert to fraction form
    57,496.78/86,245.17 = 26,239.18/x
  3. Step 3: Cross multiply
    57,496.78x = 86,245.17 × 26,239.18
  4. Step 4: Simplify right side
    57,496.78x = 2,263,002,539.76
  5. Step 5: Solve for x
    x = 2,263,002,539.76/57,496.78
  6. Step 6: Final answer
    x = 39,358.77

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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.