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Finding the Third Proportional to 15,454.13 and 20,993.34

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Solution

The third proportional to 15,454.13 and 20,993.34 is: 28,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.13 : 20,993.34 = 20,993.34 : x
  2. Step 2: Convert to fraction form
    15,454.13/20,993.34 = 20,993.34/x
  3. Step 3: Cross multiply
    15,454.13x = 20,993.34 × 20,993.34
  4. Step 4: Simplify right side
    15,454.13x = 440,720,481.81
  5. Step 5: Solve for x
    x = 440,720,481.81/15,454.13
  6. Step 6: Final answer
    x = 28,517.98

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.