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Finding the Third Proportional to 11,121.75 and 23,976

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Solution

The third proportional to 11,121.75 and 23,976 is: 51,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.75 : 23,976 = 23,976 : x
  2. Step 2: Convert to fraction form
    11,121.75/23,976 = 23,976/x
  3. Step 3: Cross multiply
    11,121.75x = 23,976 × 23,976
  4. Step 4: Simplify right side
    11,121.75x = 574,848,576
  5. Step 5: Solve for x
    x = 574,848,576/11,121.75
  6. Step 6: Final answer
    x = 51,686.88

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.