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Finding the Fourth Proportional to 5,611.53, 7,744.20 and 3,253.71

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Solution

The fourth proportional to 5,611.53, 7,744.20 and 3,253.71 is: 4,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.53 : 7,744.20 = 3,253.71 : x
  2. Step 2: Convert to fraction form
    5,611.53/7,744.20 = 3,253.71/x
  3. Step 3: Cross multiply
    5,611.53x = 7,744.20 × 3,253.71
  4. Step 4: Simplify right side
    5,611.53x = 25,197,380.98
  5. Step 5: Solve for x
    x = 25,197,380.98/5,611.53
  6. Step 6: Final answer
    x = 4,490.29

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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.