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Finding the Third Proportional to 55,212 and 86,098

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Solution

The third proportional to 55,212 and 86,098 is: 134,261.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212 : 86,098 = 86,098 : x
  2. Step 2: Convert to fraction form
    55,212/86,098 = 86,098/x
  3. Step 3: Cross multiply
    55,212x = 86,098 × 86,098
  4. Step 4: Simplify right side
    55,212x = 7,412,865,604
  5. Step 5: Solve for x
    x = 7,412,865,604/55,212
  6. Step 6: Final answer
    x = 134,261.86

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.