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Finding the Third Proportional to 55,534 and 86,015

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Solution

The third proportional to 55,534 and 86,015 is: 133,226.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,534 : 86,015 = 86,015 : x
  2. Step 2: Convert to fraction form
    55,534/86,015 = 86,015/x
  3. Step 3: Cross multiply
    55,534x = 86,015 × 86,015
  4. Step 4: Simplify right side
    55,534x = 7,398,580,225
  5. Step 5: Solve for x
    x = 7,398,580,225/55,534
  6. Step 6: Final answer
    x = 133,226.14

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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.