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Finding the Fourth Proportional to 8,791.61, 13,187.25 and 3,527.96

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Solution

The fourth proportional to 8,791.61, 13,187.25 and 3,527.96 is: 5,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.61 : 13,187.25 = 3,527.96 : x
  2. Step 2: Convert to fraction form
    8,791.61/13,187.25 = 3,527.96/x
  3. Step 3: Cross multiply
    8,791.61x = 13,187.25 × 3,527.96
  4. Step 4: Simplify right side
    8,791.61x = 46,524,024.57
  5. Step 5: Solve for x
    x = 46,524,024.57/8,791.61
  6. Step 6: Final answer
    x = 5,291.87

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Why These Related Problems?

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