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Finding the Third Proportional to 38.88 and 92

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Solution

The third proportional to 38.88 and 92 is: 217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.88 : 92 = 92 : x
  2. Step 2: Convert to fraction form
    38.88/92 = 92/x
  3. Step 3: Cross multiply
    38.88x = 92 × 92
  4. Step 4: Simplify right side
    38.88x = 8,464
  5. Step 5: Solve for x
    x = 8,464/38.88
  6. Step 6: Final answer
    x = 217.72

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.