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Finding the Fourth Proportional to 5,591.74, 7,716.90 and 3,201.82

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Solution

The fourth proportional to 5,591.74, 7,716.90 and 3,201.82 is: 4,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.74 : 7,716.90 = 3,201.82 : x
  2. Step 2: Convert to fraction form
    5,591.74/7,716.90 = 3,201.82/x
  3. Step 3: Cross multiply
    5,591.74x = 7,716.90 × 3,201.82
  4. Step 4: Simplify right side
    5,591.74x = 24,708,124.76
  5. Step 5: Solve for x
    x = 24,708,124.76/5,591.74
  6. Step 6: Final answer
    x = 4,418.68

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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.