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Finding the Fourth Proportional to 4,793.64, 7,191.30 and 2,196.78

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Solution

The fourth proportional to 4,793.64, 7,191.30 and 2,196.78 is: 3,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,793.64 : 7,191.30 = 2,196.78 : x
  2. Step 2: Convert to fraction form
    4,793.64/7,191.30 = 2,196.78/x
  3. Step 3: Cross multiply
    4,793.64x = 7,191.30 × 2,196.78
  4. Step 4: Simplify right side
    4,793.64x = 15,797,704.01
  5. Step 5: Solve for x
    x = 15,797,704.01/4,793.64
  6. Step 6: Final answer
    x = 3,295.55

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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.