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Finding the Fourth Proportional to 5,247.99, 7,871.98 and 3,599.54

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Solution

The fourth proportional to 5,247.99, 7,871.98 and 3,599.54 is: 5,399.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.99 : 7,871.98 = 3,599.54 : x
  2. Step 2: Convert to fraction form
    5,247.99/7,871.98 = 3,599.54/x
  3. Step 3: Cross multiply
    5,247.99x = 7,871.98 × 3,599.54
  4. Step 4: Simplify right side
    5,247.99x = 28,335,517.57
  5. Step 5: Solve for x
    x = 28,335,517.57/5,247.99
  6. Step 6: Final answer
    x = 5,399.31

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Similar ratio
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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.