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Finding the Fourth Proportional to 11,187.68, 16,780.36 and 3,791.95

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Solution

The fourth proportional to 11,187.68, 16,780.36 and 3,791.95 is: 5,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.68 : 16,780.36 = 3,791.95 : x
  2. Step 2: Convert to fraction form
    11,187.68/16,780.36 = 3,791.95/x
  3. Step 3: Cross multiply
    11,187.68x = 16,780.36 × 3,791.95
  4. Step 4: Simplify right side
    11,187.68x = 63,630,183.24
  5. Step 5: Solve for x
    x = 63,630,183.24/11,187.68
  6. Step 6: Final answer
    x = 5,687.53

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.