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Finding the Fourth Proportional to 7,757.52, 11,640.48 and 3,375

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Solution

The fourth proportional to 7,757.52, 11,640.48 and 3,375 is: 5,064.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,757.52 : 11,640.48 = 3,375 : x
  2. Step 2: Convert to fraction form
    7,757.52/11,640.48 = 3,375/x
  3. Step 3: Cross multiply
    7,757.52x = 11,640.48 × 3,375
  4. Step 4: Simplify right side
    7,757.52x = 39,286,620
  5. Step 5: Solve for x
    x = 39,286,620/7,757.52
  6. Step 6: Final answer
    x = 5,064.33

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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.