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Finding the Fourth Proportional to 3,447.97, 5,171.17 and 982.73

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Solution

The fourth proportional to 3,447.97, 5,171.17 and 982.73 is: 1,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.97 : 5,171.17 = 982.73 : x
  2. Step 2: Convert to fraction form
    3,447.97/5,171.17 = 982.73/x
  3. Step 3: Cross multiply
    3,447.97x = 5,171.17 × 982.73
  4. Step 4: Simplify right side
    3,447.97x = 5,081,858.98
  5. Step 5: Solve for x
    x = 5,081,858.98/3,447.97
  6. Step 6: Final answer
    x = 1,473.87

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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.