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Finding the Fourth Proportional to 2,508.75, 3,761.46 and 1,684.68

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Solution

The fourth proportional to 2,508.75, 3,761.46 and 1,684.68 is: 2,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.75 : 3,761.46 = 1,684.68 : x
  2. Step 2: Convert to fraction form
    2,508.75/3,761.46 = 1,684.68/x
  3. Step 3: Cross multiply
    2,508.75x = 3,761.46 × 1,684.68
  4. Step 4: Simplify right side
    2,508.75x = 6,336,856.43
  5. Step 5: Solve for x
    x = 6,336,856.43/2,508.75
  6. Step 6: Final answer
    x = 2,525.90

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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.