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Finding the Fourth Proportional to 3,059.42, 4,589.15 and 867.87

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Solution

The fourth proportional to 3,059.42, 4,589.15 and 867.87 is: 1,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.42 : 4,589.15 = 867.87 : x
  2. Step 2: Convert to fraction form
    3,059.42/4,589.15 = 867.87/x
  3. Step 3: Cross multiply
    3,059.42x = 4,589.15 × 867.87
  4. Step 4: Simplify right side
    3,059.42x = 3,982,781.27
  5. Step 5: Solve for x
    x = 3,982,781.27/3,059.42
  6. Step 6: Final answer
    x = 1,301.81

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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.