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Finding the Fourth Proportional to 3,392.62, 5,089.02 and 1,084.12

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Solution

The fourth proportional to 3,392.62, 5,089.02 and 1,084.12 is: 1,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.62 : 5,089.02 = 1,084.12 : x
  2. Step 2: Convert to fraction form
    3,392.62/5,089.02 = 1,084.12/x
  3. Step 3: Cross multiply
    3,392.62x = 5,089.02 × 1,084.12
  4. Step 4: Simplify right side
    3,392.62x = 5,517,108.36
  5. Step 5: Solve for x
    x = 5,517,108.36/3,392.62
  6. Step 6: Final answer
    x = 1,626.21

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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.