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Finding the Fourth Proportional to 3,785.97, 5,223.19 and 2,793.62

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Solution

The fourth proportional to 3,785.97, 5,223.19 and 2,793.62 is: 3,854.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.97 : 5,223.19 = 2,793.62 : x
  2. Step 2: Convert to fraction form
    3,785.97/5,223.19 = 2,793.62/x
  3. Step 3: Cross multiply
    3,785.97x = 5,223.19 × 2,793.62
  4. Step 4: Simplify right side
    3,785.97x = 14,591,574.95
  5. Step 5: Solve for x
    x = 14,591,574.95/3,785.97
  6. Step 6: Final answer
    x = 3,854.12

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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.