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Finding the Third Proportional to 38.25 and 48.38

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Solution

The third proportional to 38.25 and 48.38 is: 61.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.25 : 48.38 = 48.38 : x
  2. Step 2: Convert to fraction form
    38.25/48.38 = 48.38/x
  3. Step 3: Cross multiply
    38.25x = 48.38 × 48.38
  4. Step 4: Simplify right side
    38.25x = 2,340.14
  5. Step 5: Solve for x
    x = 2,340.14/38.25
  6. Step 6: Final answer
    x = 61.18

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Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.