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Finding the Third Proportional to 20,028.94 and 27,992.25

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Solution

The third proportional to 20,028.94 and 27,992.25 is: 39,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.94 : 27,992.25 = 27,992.25 : x
  2. Step 2: Convert to fraction form
    20,028.94/27,992.25 = 27,992.25/x
  3. Step 3: Cross multiply
    20,028.94x = 27,992.25 × 27,992.25
  4. Step 4: Simplify right side
    20,028.94x = 783,566,060.06
  5. Step 5: Solve for x
    x = 783,566,060.06/20,028.94
  6. Step 6: Final answer
    x = 39,121.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.