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Finding the Fourth Proportional to 61,884.54, 85,395.47 and 36,391.82

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Solution

The fourth proportional to 61,884.54, 85,395.47 and 36,391.82 is: 50,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,884.54 : 85,395.47 = 36,391.82 : x
  2. Step 2: Convert to fraction form
    61,884.54/85,395.47 = 36,391.82/x
  3. Step 3: Cross multiply
    61,884.54x = 85,395.47 × 36,391.82
  4. Step 4: Simplify right side
    61,884.54x = 3,107,695,964.12
  5. Step 5: Solve for x
    x = 3,107,695,964.12/61,884.54
  6. Step 6: Final answer
    x = 50,217.65

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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.