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Finding the Third Proportional to 38.81 and 92.67

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Solution

The third proportional to 38.81 and 92.67 is: 221.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.81 : 92.67 = 92.67 : x
  2. Step 2: Convert to fraction form
    38.81/92.67 = 92.67/x
  3. Step 3: Cross multiply
    38.81x = 92.67 × 92.67
  4. Step 4: Simplify right side
    38.81x = 8,588.08
  5. Step 5: Solve for x
    x = 8,588.08/38.81
  6. Step 6: Final answer
    x = 221.27

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.