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Finding the Fourth Proportional to 3,593.88, 5,390.82 and 3,105.45

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Solution

The fourth proportional to 3,593.88, 5,390.82 and 3,105.45 is: 4,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.88 : 5,390.82 = 3,105.45 : x
  2. Step 2: Convert to fraction form
    3,593.88/5,390.82 = 3,105.45/x
  3. Step 3: Cross multiply
    3,593.88x = 5,390.82 × 3,105.45
  4. Step 4: Simplify right side
    3,593.88x = 16,740,921.97
  5. Step 5: Solve for x
    x = 16,740,921.97/3,593.88
  6. Step 6: Final answer
    x = 4,658.18

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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.