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Finding the Fourth Proportional to 61,935.62, 85,456.50 and 36,443.10

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Solution

The fourth proportional to 61,935.62, 85,456.50 and 36,443.10 is: 50,282.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,935.62 : 85,456.50 = 36,443.10 : x
  2. Step 2: Convert to fraction form
    61,935.62/85,456.50 = 36,443.10/x
  3. Step 3: Cross multiply
    61,935.62x = 85,456.50 × 36,443.10
  4. Step 4: Simplify right side
    61,935.62x = 3,114,299,775.15
  5. Step 5: Solve for x
    x = 3,114,299,775.15/61,935.62
  6. Step 6: Final answer
    x = 50,282.86

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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.