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Finding the Fourth Proportional to 17,980.67, 26,974.10 and 5,500.39

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Solution

The fourth proportional to 17,980.67, 26,974.10 and 5,500.39 is: 8,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.67 : 26,974.10 = 5,500.39 : x
  2. Step 2: Convert to fraction form
    17,980.67/26,974.10 = 5,500.39/x
  3. Step 3: Cross multiply
    17,980.67x = 26,974.10 × 5,500.39
  4. Step 4: Simplify right side
    17,980.67x = 148,368,069.90
  5. Step 5: Solve for x
    x = 148,368,069.90/17,980.67
  6. Step 6: Final answer
    x = 8,251.53

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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.