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Finding the Third Proportional to 15,878.25 and 33,865.13

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Solution

The third proportional to 15,878.25 and 33,865.13 is: 72,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.25 : 33,865.13 = 33,865.13 : x
  2. Step 2: Convert to fraction form
    15,878.25/33,865.13 = 33,865.13/x
  3. Step 3: Cross multiply
    15,878.25x = 33,865.13 × 33,865.13
  4. Step 4: Simplify right side
    15,878.25x = 1,146,846,691.27
  5. Step 5: Solve for x
    x = 1,146,846,691.27/15,878.25
  6. Step 6: Final answer
    x = 72,227.52

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.