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Finding the Fourth Proportional to 5,474.80, 7,553.08 and 3,375.28

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Solution

The fourth proportional to 5,474.80, 7,553.08 and 3,375.28 is: 4,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.80 : 7,553.08 = 3,375.28 : x
  2. Step 2: Convert to fraction form
    5,474.80/7,553.08 = 3,375.28/x
  3. Step 3: Cross multiply
    5,474.80x = 7,553.08 × 3,375.28
  4. Step 4: Simplify right side
    5,474.80x = 25,493,759.86
  5. Step 5: Solve for x
    x = 25,493,759.86/5,474.80
  6. Step 6: Final answer
    x = 4,656.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.