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Finding the Third Proportional to 97.88 and 113.25

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Solution

The third proportional to 97.88 and 113.25 is: 131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.88 : 113.25 = 113.25 : x
  2. Step 2: Convert to fraction form
    97.88/113.25 = 113.25/x
  3. Step 3: Cross multiply
    97.88x = 113.25 × 113.25
  4. Step 4: Simplify right side
    97.88x = 12,825.56
  5. Step 5: Solve for x
    x = 12,825.56/97.88
  6. Step 6: Final answer
    x = 131.04

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.