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Finding the Fourth Proportional to 5,791.34, 8,687.52 and 1,631.38

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Solution

The fourth proportional to 5,791.34, 8,687.52 and 1,631.38 is: 2,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.34 : 8,687.52 = 1,631.38 : x
  2. Step 2: Convert to fraction form
    5,791.34/8,687.52 = 1,631.38/x
  3. Step 3: Cross multiply
    5,791.34x = 8,687.52 × 1,631.38
  4. Step 4: Simplify right side
    5,791.34x = 14,172,668.10
  5. Step 5: Solve for x
    x = 14,172,668.10/5,791.34
  6. Step 6: Final answer
    x = 2,447.22

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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.