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Finding the Third Proportional to 18,702 and 31,167

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Solution

The third proportional to 18,702 and 31,167 is: 51,940.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702 : 31,167 = 31,167 : x
  2. Step 2: Convert to fraction form
    18,702/31,167 = 31,167/x
  3. Step 3: Cross multiply
    18,702x = 31,167 × 31,167
  4. Step 4: Simplify right side
    18,702x = 971,381,889
  5. Step 5: Solve for x
    x = 971,381,889/18,702
  6. Step 6: Final answer
    x = 51,940.00

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.