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Finding the Third Proportional to 55,993 and 84,243

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Solution

The third proportional to 55,993 and 84,243 is: 126,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,993 : 84,243 = 84,243 : x
  2. Step 2: Convert to fraction form
    55,993/84,243 = 84,243/x
  3. Step 3: Cross multiply
    55,993x = 84,243 × 84,243
  4. Step 4: Simplify right side
    55,993x = 7,096,883,049
  5. Step 5: Solve for x
    x = 7,096,883,049/55,993
  6. Step 6: Final answer
    x = 126,745.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.