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Finding the Fourth Proportional to 3,422.54, 4,723.12 and 1,850.64

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Solution

The fourth proportional to 3,422.54, 4,723.12 and 1,850.64 is: 2,553.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.54 : 4,723.12 = 1,850.64 : x
  2. Step 2: Convert to fraction form
    3,422.54/4,723.12 = 1,850.64/x
  3. Step 3: Cross multiply
    3,422.54x = 4,723.12 × 1,850.64
  4. Step 4: Simplify right side
    3,422.54x = 8,740,794.80
  5. Step 5: Solve for x
    x = 8,740,794.80/3,422.54
  6. Step 6: Final answer
    x = 2,553.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.