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Finding the Fourth Proportional to 3,867.63, 5,799.62 and 1,400.73

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Solution

The fourth proportional to 3,867.63, 5,799.62 and 1,400.73 is: 2,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.63 : 5,799.62 = 1,400.73 : x
  2. Step 2: Convert to fraction form
    3,867.63/5,799.62 = 1,400.73/x
  3. Step 3: Cross multiply
    3,867.63x = 5,799.62 × 1,400.73
  4. Step 4: Simplify right side
    3,867.63x = 8,123,694.72
  5. Step 5: Solve for x
    x = 8,123,694.72/3,867.63
  6. Step 6: Final answer
    x = 2,100.43

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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.