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Finding the Fourth Proportional to 5,198.88, 7,794.12 and 3,551.28

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Solution

The fourth proportional to 5,198.88, 7,794.12 and 3,551.28 is: 5,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.88 : 7,794.12 = 3,551.28 : x
  2. Step 2: Convert to fraction form
    5,198.88/7,794.12 = 3,551.28/x
  3. Step 3: Cross multiply
    5,198.88x = 7,794.12 × 3,551.28
  4. Step 4: Simplify right side
    5,198.88x = 27,679,102.47
  5. Step 5: Solve for x
    x = 27,679,102.47/5,198.88
  6. Step 6: Final answer
    x = 5,324.05

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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.