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Finding the Fourth Proportional to 7,227.80, 9,974.26 and 4,083.88

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Solution

The fourth proportional to 7,227.80, 9,974.26 and 4,083.88 is: 5,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,227.80 : 9,974.26 = 4,083.88 : x
  2. Step 2: Convert to fraction form
    7,227.80/9,974.26 = 4,083.88/x
  3. Step 3: Cross multiply
    7,227.80x = 9,974.26 × 4,083.88
  4. Step 4: Simplify right side
    7,227.80x = 40,733,680.93
  5. Step 5: Solve for x
    x = 40,733,680.93/7,227.80
  6. Step 6: Final answer
    x = 5,635.70

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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.