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Finding the Fourth Proportional to 2,765.62, 4,149.96 and 1,532.87

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Solution

The fourth proportional to 2,765.62, 4,149.96 and 1,532.87 is: 2,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.62 : 4,149.96 = 1,532.87 : x
  2. Step 2: Convert to fraction form
    2,765.62/4,149.96 = 1,532.87/x
  3. Step 3: Cross multiply
    2,765.62x = 4,149.96 × 1,532.87
  4. Step 4: Simplify right side
    2,765.62x = 6,361,338.25
  5. Step 5: Solve for x
    x = 6,361,338.25/2,765.62
  6. Step 6: Final answer
    x = 2,300.15

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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.