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Finding the Third Proportional to 10.82 and 28.11

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Solution

The third proportional to 10.82 and 28.11 is: 73.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.82 : 28.11 = 28.11 : x
  2. Step 2: Convert to fraction form
    10.82/28.11 = 28.11/x
  3. Step 3: Cross multiply
    10.82x = 28.11 × 28.11
  4. Step 4: Simplify right side
    10.82x = 790.06
  5. Step 5: Solve for x
    x = 790.06/10.82
  6. Step 6: Final answer
    x = 73.01

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.