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Finding the Third Proportional to 19,163.25 and 20,891.25

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Solution

The third proportional to 19,163.25 and 20,891.25 is: 22,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.25 : 20,891.25 = 20,891.25 : x
  2. Step 2: Convert to fraction form
    19,163.25/20,891.25 = 20,891.25/x
  3. Step 3: Cross multiply
    19,163.25x = 20,891.25 × 20,891.25
  4. Step 4: Simplify right side
    19,163.25x = 436,444,326.56
  5. Step 5: Solve for x
    x = 436,444,326.56/19,163.25
  6. Step 6: Final answer
    x = 22,775.07

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.