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Finding the Fourth Proportional to 61,535.40, 84,939.94 and 36,049.96

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Solution

The fourth proportional to 61,535.40, 84,939.94 and 36,049.96 is: 49,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,535.40 : 84,939.94 = 36,049.96 : x
  2. Step 2: Convert to fraction form
    61,535.40/84,939.94 = 36,049.96/x
  3. Step 3: Cross multiply
    61,535.40x = 84,939.94 × 36,049.96
  4. Step 4: Simplify right side
    61,535.40x = 3,062,081,439.40
  5. Step 5: Solve for x
    x = 3,062,081,439.40/61,535.40
  6. Step 6: Final answer
    x = 49,761.30

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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.