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Finding the Fourth Proportional to 3,659.62, 5,489.43 and 1,062.57

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Solution

The fourth proportional to 3,659.62, 5,489.43 and 1,062.57 is: 1,593.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.62 : 5,489.43 = 1,062.57 : x
  2. Step 2: Convert to fraction form
    3,659.62/5,489.43 = 1,062.57/x
  3. Step 3: Cross multiply
    3,659.62x = 5,489.43 × 1,062.57
  4. Step 4: Simplify right side
    3,659.62x = 5,832,903.64
  5. Step 5: Solve for x
    x = 5,832,903.64/3,659.62
  6. Step 6: Final answer
    x = 1,593.86

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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.