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Finding the Third Proportional to 11,999.25 and 15,922.41

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Solution

The third proportional to 11,999.25 and 15,922.41 is: 21,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.25 : 15,922.41 = 15,922.41 : x
  2. Step 2: Convert to fraction form
    11,999.25/15,922.41 = 15,922.41/x
  3. Step 3: Cross multiply
    11,999.25x = 15,922.41 × 15,922.41
  4. Step 4: Simplify right side
    11,999.25x = 253,523,020.79
  5. Step 5: Solve for x
    x = 253,523,020.79/11,999.25
  6. Step 6: Final answer
    x = 21,128.24

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.