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Finding the Third Proportional to 21,625.50 and 27,633

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Solution

The third proportional to 21,625.50 and 27,633 is: 35,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.50 : 27,633 = 27,633 : x
  2. Step 2: Convert to fraction form
    21,625.50/27,633 = 27,633/x
  3. Step 3: Cross multiply
    21,625.50x = 27,633 × 27,633
  4. Step 4: Simplify right side
    21,625.50x = 763,582,689
  5. Step 5: Solve for x
    x = 763,582,689/21,625.50
  6. Step 6: Final answer
    x = 35,309.37

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.