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Finding the Fourth Proportional to 57,462.61, 86,274.65 and 29,402.79

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Solution

The fourth proportional to 57,462.61, 86,274.65 and 29,402.79 is: 44,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,462.61 : 86,274.65 = 29,402.79 : x
  2. Step 2: Convert to fraction form
    57,462.61/86,274.65 = 29,402.79/x
  3. Step 3: Cross multiply
    57,462.61x = 86,274.65 × 29,402.79
  4. Step 4: Simplify right side
    57,462.61x = 2,536,715,416.27
  5. Step 5: Solve for x
    x = 2,536,715,416.27/57,462.61
  6. Step 6: Final answer
    x = 44,145.50

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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.