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Finding the Fourth Proportional to 61,081.32, 84,305.56 and 35,591.88

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Solution

The fourth proportional to 61,081.32, 84,305.56 and 35,591.88 is: 49,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,081.32 : 84,305.56 = 35,591.88 : x
  2. Step 2: Convert to fraction form
    61,081.32/84,305.56 = 35,591.88/x
  3. Step 3: Cross multiply
    61,081.32x = 84,305.56 × 35,591.88
  4. Step 4: Simplify right side
    61,081.32x = 3,000,593,374.85
  5. Step 5: Solve for x
    x = 3,000,593,374.85/61,081.32
  6. Step 6: Final answer
    x = 49,124.57

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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.