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Finding the Third Proportional to 25,115.25 and 38,919.38

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Solution

The third proportional to 25,115.25 and 38,919.38 is: 60,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.25 : 38,919.38 = 38,919.38 : x
  2. Step 2: Convert to fraction form
    25,115.25/38,919.38 = 38,919.38/x
  3. Step 3: Cross multiply
    25,115.25x = 38,919.38 × 38,919.38
  4. Step 4: Simplify right side
    25,115.25x = 1,514,717,750.39
  5. Step 5: Solve for x
    x = 1,514,717,750.39/25,115.25
  6. Step 6: Final answer
    x = 60,310.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.