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Finding the Third Proportional to 15,921.28 and 33,739.03

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Solution

The third proportional to 15,921.28 and 33,739.03 is: 71,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.28 : 33,739.03 = 33,739.03 : x
  2. Step 2: Convert to fraction form
    15,921.28/33,739.03 = 33,739.03/x
  3. Step 3: Cross multiply
    15,921.28x = 33,739.03 × 33,739.03
  4. Step 4: Simplify right side
    15,921.28x = 1,138,322,229.69
  5. Step 5: Solve for x
    x = 1,138,322,229.69/15,921.28
  6. Step 6: Final answer
    x = 71,496.90

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.