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Finding the Third Proportional to 33.96 and 72.98

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Solution

The third proportional to 33.96 and 72.98 is: 156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.96 : 72.98 = 72.98 : x
  2. Step 2: Convert to fraction form
    33.96/72.98 = 72.98/x
  3. Step 3: Cross multiply
    33.96x = 72.98 × 72.98
  4. Step 4: Simplify right side
    33.96x = 5,326.72
  5. Step 5: Solve for x
    x = 5,326.72/33.96
  6. Step 6: Final answer
    x = 156.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.