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Finding the Fourth Proportional to 57,355.74, 86,026.95 and 15,239.13

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Solution

The fourth proportional to 57,355.74, 86,026.95 and 15,239.13 is: 22,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,355.74 : 86,026.95 = 15,239.13 : x
  2. Step 2: Convert to fraction form
    57,355.74/86,026.95 = 15,239.13/x
  3. Step 3: Cross multiply
    57,355.74x = 86,026.95 × 15,239.13
  4. Step 4: Simplify right side
    57,355.74x = 1,310,975,874.55
  5. Step 5: Solve for x
    x = 1,310,975,874.55/57,355.74
  6. Step 6: Final answer
    x = 22,856.93

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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.