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Finding the Third Proportional to 33,781.25 and 78,206

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Solution

The third proportional to 33,781.25 and 78,206 is: 181,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,781.25 : 78,206 = 78,206 : x
  2. Step 2: Convert to fraction form
    33,781.25/78,206 = 78,206/x
  3. Step 3: Cross multiply
    33,781.25x = 78,206 × 78,206
  4. Step 4: Simplify right side
    33,781.25x = 6,116,178,436
  5. Step 5: Solve for x
    x = 6,116,178,436/33,781.25
  6. Step 6: Final answer
    x = 181,052.46

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.