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Finding the Third Proportional to 27,021 and 43,167

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Solution

The third proportional to 27,021 and 43,167 is: 68,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,021 : 43,167 = 43,167 : x
  2. Step 2: Convert to fraction form
    27,021/43,167 = 43,167/x
  3. Step 3: Cross multiply
    27,021x = 43,167 × 43,167
  4. Step 4: Simplify right side
    27,021x = 1,863,389,889
  5. Step 5: Solve for x
    x = 1,863,389,889/27,021
  6. Step 6: Final answer
    x = 68,960.80

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.