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Finding the Fourth Proportional to 5,791.24, 8,687.09 and 2,979.33

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Solution

The fourth proportional to 5,791.24, 8,687.09 and 2,979.33 is: 4,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.24 : 8,687.09 = 2,979.33 : x
  2. Step 2: Convert to fraction form
    5,791.24/8,687.09 = 2,979.33/x
  3. Step 3: Cross multiply
    5,791.24x = 8,687.09 × 2,979.33
  4. Step 4: Simplify right side
    5,791.24x = 25,881,707.85
  5. Step 5: Solve for x
    x = 25,881,707.85/5,791.24
  6. Step 6: Final answer
    x = 4,469.11

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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.