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Finding the Third Proportional to 38.69 and 92.38

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Solution

The third proportional to 38.69 and 92.38 is: 220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.69 : 92.38 = 92.38 : x
  2. Step 2: Convert to fraction form
    38.69/92.38 = 92.38/x
  3. Step 3: Cross multiply
    38.69x = 92.38 × 92.38
  4. Step 4: Simplify right side
    38.69x = 8,533.14
  5. Step 5: Solve for x
    x = 8,533.14/38.69
  6. Step 6: Final answer
    x = 220.57

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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.