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Finding the Fourth Proportional to 61,926.42, 85,478.85 and 36,432.48

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Solution

The fourth proportional to 61,926.42, 85,478.85 and 36,432.48 is: 50,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,926.42 : 85,478.85 = 36,432.48 : x
  2. Step 2: Convert to fraction form
    61,926.42/85,478.85 = 36,432.48/x
  3. Step 3: Cross multiply
    61,926.42x = 85,478.85 × 36,432.48
  4. Step 4: Simplify right side
    61,926.42x = 3,114,206,493.05
  5. Step 5: Solve for x
    x = 3,114,206,493.05/61,926.42
  6. Step 6: Final answer
    x = 50,288.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.