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Finding the Third Proportional to 15,048 and 20,131.75

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Solution

The third proportional to 15,048 and 20,131.75 is: 26,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048 : 20,131.75 = 20,131.75 : x
  2. Step 2: Convert to fraction form
    15,048/20,131.75 = 20,131.75/x
  3. Step 3: Cross multiply
    15,048x = 20,131.75 × 20,131.75
  4. Step 4: Simplify right side
    15,048x = 405,287,358.06
  5. Step 5: Solve for x
    x = 405,287,358.06/15,048
  6. Step 6: Final answer
    x = 26,932.97

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.