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Finding the Fourth Proportional to 3,838.97, 5,755.37 and 3,531.44

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Solution

The fourth proportional to 3,838.97, 5,755.37 and 3,531.44 is: 5,294.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.97 : 5,755.37 = 3,531.44 : x
  2. Step 2: Convert to fraction form
    3,838.97/5,755.37 = 3,531.44/x
  3. Step 3: Cross multiply
    3,838.97x = 5,755.37 × 3,531.44
  4. Step 4: Simplify right side
    3,838.97x = 20,324,697.40
  5. Step 5: Solve for x
    x = 20,324,697.40/3,838.97
  6. Step 6: Final answer
    x = 5,294.32

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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.