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Finding the Third Proportional to 18,831 and 29,175.75

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Solution

The third proportional to 18,831 and 29,175.75 is: 45,203.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831 : 29,175.75 = 29,175.75 : x
  2. Step 2: Convert to fraction form
    18,831/29,175.75 = 29,175.75/x
  3. Step 3: Cross multiply
    18,831x = 29,175.75 × 29,175.75
  4. Step 4: Simplify right side
    18,831x = 851,224,388.06
  5. Step 5: Solve for x
    x = 851,224,388.06/18,831
  6. Step 6: Final answer
    x = 45,203.36

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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.