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Finding the Third Proportional to 83.44 and 187.88

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Solution

The third proportional to 83.44 and 187.88 is: 423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.44 : 187.88 = 187.88 : x
  2. Step 2: Convert to fraction form
    83.44/187.88 = 187.88/x
  3. Step 3: Cross multiply
    83.44x = 187.88 × 187.88
  4. Step 4: Simplify right side
    83.44x = 35,297.02
  5. Step 5: Solve for x
    x = 35,297.02/83.44
  6. Step 6: Final answer
    x = 423.04

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.