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Finding the Fourth Proportional to 5,778.54, 7,974.39 and 3,261.18

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Solution

The fourth proportional to 5,778.54, 7,974.39 and 3,261.18 is: 4,500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.54 : 7,974.39 = 3,261.18 : x
  2. Step 2: Convert to fraction form
    5,778.54/7,974.39 = 3,261.18/x
  3. Step 3: Cross multiply
    5,778.54x = 7,974.39 × 3,261.18
  4. Step 4: Simplify right side
    5,778.54x = 26,005,921.18
  5. Step 5: Solve for x
    x = 26,005,921.18/5,778.54
  6. Step 6: Final answer
    x = 4,500.43

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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.