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Finding the Fourth Proportional to 5,500.71, 7,589.90 and 3,375.99

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Solution

The fourth proportional to 5,500.71, 7,589.90 and 3,375.99 is: 4,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.71 : 7,589.90 = 3,375.99 : x
  2. Step 2: Convert to fraction form
    5,500.71/7,589.90 = 3,375.99/x
  3. Step 3: Cross multiply
    5,500.71x = 7,589.90 × 3,375.99
  4. Step 4: Simplify right side
    5,500.71x = 25,623,409.62
  5. Step 5: Solve for x
    x = 25,623,409.62/5,500.71
  6. Step 6: Final answer
    x = 4,658.20

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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.