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Finding the Fourth Proportional to 57,656.93, 86,529.15 and 38,892.47

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Solution

The fourth proportional to 57,656.93, 86,529.15 and 38,892.47 is: 58,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,656.93 : 86,529.15 = 38,892.47 : x
  2. Step 2: Convert to fraction form
    57,656.93/86,529.15 = 38,892.47/x
  3. Step 3: Cross multiply
    57,656.93x = 86,529.15 × 38,892.47
  4. Step 4: Simplify right side
    57,656.93x = 3,365,331,937.85
  5. Step 5: Solve for x
    x = 3,365,331,937.85/57,656.93
  6. Step 6: Final answer
    x = 58,368.22

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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.