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Finding the Fourth Proportional to 3,982.76, 5,496.84 and 3,853.26

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Solution

The fourth proportional to 3,982.76, 5,496.84 and 3,853.26 is: 5,318.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.76 : 5,496.84 = 3,853.26 : x
  2. Step 2: Convert to fraction form
    3,982.76/5,496.84 = 3,853.26/x
  3. Step 3: Cross multiply
    3,982.76x = 5,496.84 × 3,853.26
  4. Step 4: Simplify right side
    3,982.76x = 21,180,753.70
  5. Step 5: Solve for x
    x = 21,180,753.70/3,982.76
  6. Step 6: Final answer
    x = 5,318.11

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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.