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Finding the Third Proportional to 38,240 and 84,012

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Solution

The third proportional to 38,240 and 84,012 is: 184,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,240 : 84,012 = 84,012 : x
  2. Step 2: Convert to fraction form
    38,240/84,012 = 84,012/x
  3. Step 3: Cross multiply
    38,240x = 84,012 × 84,012
  4. Step 4: Simplify right side
    38,240x = 7,058,016,144
  5. Step 5: Solve for x
    x = 7,058,016,144/38,240
  6. Step 6: Final answer
    x = 184,571.55

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.