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Finding the Third Proportional to 95.50 and 121.25

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Solution

The third proportional to 95.50 and 121.25 is: 153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.50 : 121.25 = 121.25 : x
  2. Step 2: Convert to fraction form
    95.50/121.25 = 121.25/x
  3. Step 3: Cross multiply
    95.50x = 121.25 × 121.25
  4. Step 4: Simplify right side
    95.50x = 14,701.56
  5. Step 5: Solve for x
    x = 14,701.56/95.50
  6. Step 6: Final answer
    x = 153.94

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.