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Finding the Fourth Proportional to 57,486.78, 86,179.14 and 22,451.04

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Solution

The fourth proportional to 57,486.78, 86,179.14 and 22,451.04 is: 33,656.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,486.78 : 86,179.14 = 22,451.04 : x
  2. Step 2: Convert to fraction form
    57,486.78/86,179.14 = 22,451.04/x
  3. Step 3: Cross multiply
    57,486.78x = 86,179.14 × 22,451.04
  4. Step 4: Simplify right side
    57,486.78x = 1,934,811,319.31
  5. Step 5: Solve for x
    x = 1,934,811,319.31/57,486.78
  6. Step 6: Final answer
    x = 33,656.63

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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.