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Finding the Fourth Proportional to 3,591.88, 5,388.52 and 1,251.80

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Solution

The fourth proportional to 3,591.88, 5,388.52 and 1,251.80 is: 1,877.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.88 : 5,388.52 = 1,251.80 : x
  2. Step 2: Convert to fraction form
    3,591.88/5,388.52 = 1,251.80/x
  3. Step 3: Cross multiply
    3,591.88x = 5,388.52 × 1,251.80
  4. Step 4: Simplify right side
    3,591.88x = 6,745,349.34
  5. Step 5: Solve for x
    x = 6,745,349.34/3,591.88
  6. Step 6: Final answer
    x = 1,877.94

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1.5x scale

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.