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Finding the Third Proportional to 7,398.75 and 15,739.13

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Solution

The third proportional to 7,398.75 and 15,739.13 is: 33,481.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.75 : 15,739.13 = 15,739.13 : x
  2. Step 2: Convert to fraction form
    7,398.75/15,739.13 = 15,739.13/x
  3. Step 3: Cross multiply
    7,398.75x = 15,739.13 × 15,739.13
  4. Step 4: Simplify right side
    7,398.75x = 247,720,055.77
  5. Step 5: Solve for x
    x = 247,720,055.77/7,398.75
  6. Step 6: Final answer
    x = 33,481.34

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.