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Finding the Fourth Proportional to 3,486.73, 5,229.90 and 2,550.64

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Solution

The fourth proportional to 3,486.73, 5,229.90 and 2,550.64 is: 3,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.73 : 5,229.90 = 2,550.64 : x
  2. Step 2: Convert to fraction form
    3,486.73/5,229.90 = 2,550.64/x
  3. Step 3: Cross multiply
    3,486.73x = 5,229.90 × 2,550.64
  4. Step 4: Simplify right side
    3,486.73x = 13,339,592.14
  5. Step 5: Solve for x
    x = 13,339,592.14/3,486.73
  6. Step 6: Final answer
    x = 3,825.82

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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.