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Finding the Fourth Proportional to 2,759.76, 4,134.78 and 2,458.44

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Solution

The fourth proportional to 2,759.76, 4,134.78 and 2,458.44 is: 3,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.76 : 4,134.78 = 2,458.44 : x
  2. Step 2: Convert to fraction form
    2,759.76/4,134.78 = 2,458.44/x
  3. Step 3: Cross multiply
    2,759.76x = 4,134.78 × 2,458.44
  4. Step 4: Simplify right side
    2,759.76x = 10,165,108.54
  5. Step 5: Solve for x
    x = 10,165,108.54/2,759.76
  6. Step 6: Final answer
    x = 3,683.33

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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.