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Finding the Fourth Proportional to 5,311.55, 7,951.75 and 3,724.77

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Solution

The fourth proportional to 5,311.55, 7,951.75 and 3,724.77 is: 5,576.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.55 : 7,951.75 = 3,724.77 : x
  2. Step 2: Convert to fraction form
    5,311.55/7,951.75 = 3,724.77/x
  3. Step 3: Cross multiply
    5,311.55x = 7,951.75 × 3,724.77
  4. Step 4: Simplify right side
    5,311.55x = 29,618,381.46
  5. Step 5: Solve for x
    x = 29,618,381.46/5,311.55
  6. Step 6: Final answer
    x = 5,576.22

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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.