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Finding the Third Proportional to 21,912.75 and 33,891.75

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Solution

The third proportional to 21,912.75 and 33,891.75 is: 52,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912.75 : 33,891.75 = 33,891.75 : x
  2. Step 2: Convert to fraction form
    21,912.75/33,891.75 = 33,891.75/x
  3. Step 3: Cross multiply
    21,912.75x = 33,891.75 × 33,891.75
  4. Step 4: Simplify right side
    21,912.75x = 1,148,650,718.06
  5. Step 5: Solve for x
    x = 1,148,650,718.06/21,912.75
  6. Step 6: Final answer
    x = 52,419.29

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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.