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Finding the Fourth Proportional to 3,995.76, 5,993.20 and 1,073.84

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Solution

The fourth proportional to 3,995.76, 5,993.20 and 1,073.84 is: 1,610.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.76 : 5,993.20 = 1,073.84 : x
  2. Step 2: Convert to fraction form
    3,995.76/5,993.20 = 1,073.84/x
  3. Step 3: Cross multiply
    3,995.76x = 5,993.20 × 1,073.84
  4. Step 4: Simplify right side
    3,995.76x = 6,435,737.89
  5. Step 5: Solve for x
    x = 6,435,737.89/3,995.76
  6. Step 6: Final answer
    x = 1,610.64

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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.