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Finding the Third Proportional to 38,998.97 and 55,729.90

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Solution

The third proportional to 38,998.97 and 55,729.90 is: 79,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998.97 : 55,729.90 = 55,729.90 : x
  2. Step 2: Convert to fraction form
    38,998.97/55,729.90 = 55,729.90/x
  3. Step 3: Cross multiply
    38,998.97x = 55,729.90 × 55,729.90
  4. Step 4: Simplify right side
    38,998.97x = 3,105,821,579.85
  5. Step 5: Solve for x
    x = 3,105,821,579.85/38,998.97
  6. Step 6: Final answer
    x = 79,638.56

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.