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Finding the Fourth Proportional to 5,791.32, 8,690.22 and 2,331

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Solution

The fourth proportional to 5,791.32, 8,690.22 and 2,331 is: 3,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.32 : 8,690.22 = 2,331 : x
  2. Step 2: Convert to fraction form
    5,791.32/8,690.22 = 2,331/x
  3. Step 3: Cross multiply
    5,791.32x = 8,690.22 × 2,331
  4. Step 4: Simplify right side
    5,791.32x = 20,256,902.82
  5. Step 5: Solve for x
    x = 20,256,902.82/5,791.32
  6. Step 6: Final answer
    x = 3,497.80

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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.