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Finding the Fourth Proportional to 4,742.73, 7,115.26 and 2,144.97

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Solution

The fourth proportional to 4,742.73, 7,115.26 and 2,144.97 is: 3,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.73 : 7,115.26 = 2,144.97 : x
  2. Step 2: Convert to fraction form
    4,742.73/7,115.26 = 2,144.97/x
  3. Step 3: Cross multiply
    4,742.73x = 7,115.26 × 2,144.97
  4. Step 4: Simplify right side
    4,742.73x = 15,262,019.24
  5. Step 5: Solve for x
    x = 15,262,019.24/4,742.73
  6. Step 6: Final answer
    x = 3,217.98

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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.