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Finding the Third Proportional to 33,431 and 79,203

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Solution

The third proportional to 33,431 and 79,203 is: 187,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,431 : 79,203 = 79,203 : x
  2. Step 2: Convert to fraction form
    33,431/79,203 = 79,203/x
  3. Step 3: Cross multiply
    33,431x = 79,203 × 79,203
  4. Step 4: Simplify right side
    33,431x = 6,273,115,209
  5. Step 5: Solve for x
    x = 6,273,115,209/33,431
  6. Step 6: Final answer
    x = 187,643.66

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.