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Finding the Fourth Proportional to 3,589.92, 5,381.64 and 2,494.80

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Solution

The fourth proportional to 3,589.92, 5,381.64 and 2,494.80 is: 3,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.92 : 5,381.64 = 2,494.80 : x
  2. Step 2: Convert to fraction form
    3,589.92/5,381.64 = 2,494.80/x
  3. Step 3: Cross multiply
    3,589.92x = 5,381.64 × 2,494.80
  4. Step 4: Simplify right side
    3,589.92x = 13,426,115.47
  5. Step 5: Solve for x
    x = 13,426,115.47/3,589.92
  6. Step 6: Final answer
    x = 3,739.95

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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.