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Finding the Third Proportional to 21,616.50 and 33,081

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Solution

The third proportional to 21,616.50 and 33,081 is: 50,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.50 : 33,081 = 33,081 : x
  2. Step 2: Convert to fraction form
    21,616.50/33,081 = 33,081/x
  3. Step 3: Cross multiply
    21,616.50x = 33,081 × 33,081
  4. Step 4: Simplify right side
    21,616.50x = 1,094,352,561
  5. Step 5: Solve for x
    x = 1,094,352,561/21,616.50
  6. Step 6: Final answer
    x = 50,625.80

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.