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Finding the Third Proportional to 19,014.75 and 20,493

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Solution

The third proportional to 19,014.75 and 20,493 is: 22,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,014.75 : 20,493 = 20,493 : x
  2. Step 2: Convert to fraction form
    19,014.75/20,493 = 20,493/x
  3. Step 3: Cross multiply
    19,014.75x = 20,493 × 20,493
  4. Step 4: Simplify right side
    19,014.75x = 419,963,049
  5. Step 5: Solve for x
    x = 419,963,049/19,014.75
  6. Step 6: Final answer
    x = 22,086.17

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.