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Finding the Fourth Proportional to 5,616.65, 7,751.33 and 3,227.38

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Solution

The fourth proportional to 5,616.65, 7,751.33 and 3,227.38 is: 4,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.65 : 7,751.33 = 3,227.38 : x
  2. Step 2: Convert to fraction form
    5,616.65/7,751.33 = 3,227.38/x
  3. Step 3: Cross multiply
    5,616.65x = 7,751.33 × 3,227.38
  4. Step 4: Simplify right side
    5,616.65x = 25,016,487.42
  5. Step 5: Solve for x
    x = 25,016,487.42/5,616.65
  6. Step 6: Final answer
    x = 4,453.99

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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.