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Finding the Third Proportional to 55,664 and 86,204

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Solution

The third proportional to 55,664 and 86,204 is: 133,499.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,664 : 86,204 = 86,204 : x
  2. Step 2: Convert to fraction form
    55,664/86,204 = 86,204/x
  3. Step 3: Cross multiply
    55,664x = 86,204 × 86,204
  4. Step 4: Simplify right side
    55,664x = 7,431,129,616
  5. Step 5: Solve for x
    x = 7,431,129,616/55,664
  6. Step 6: Final answer
    x = 133,499.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.