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Finding the Fourth Proportional to 3,367.52, 4,665.20 and 3,286.88

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Solution

The fourth proportional to 3,367.52, 4,665.20 and 3,286.88 is: 4,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,367.52 : 4,665.20 = 3,286.88 : x
  2. Step 2: Convert to fraction form
    3,367.52/4,665.20 = 3,286.88/x
  3. Step 3: Cross multiply
    3,367.52x = 4,665.20 × 3,286.88
  4. Step 4: Simplify right side
    3,367.52x = 15,333,952.58
  5. Step 5: Solve for x
    x = 15,333,952.58/3,367.52
  6. Step 6: Final answer
    x = 4,553.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.