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Finding the Fourth Proportional to 3,993.36, 5,508.08 and 3,662.88

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Solution

The fourth proportional to 3,993.36, 5,508.08 and 3,662.88 is: 5,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.36 : 5,508.08 = 3,662.88 : x
  2. Step 2: Convert to fraction form
    3,993.36/5,508.08 = 3,662.88/x
  3. Step 3: Cross multiply
    3,993.36x = 5,508.08 × 3,662.88
  4. Step 4: Simplify right side
    3,993.36x = 20,175,436.07
  5. Step 5: Solve for x
    x = 20,175,436.07/3,993.36
  6. Step 6: Final answer
    x = 5,052.25

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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.