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Finding the Third Proportional to 18,992 and 27,938

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Solution

The third proportional to 18,992 and 27,938 is: 41,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992 : 27,938 = 27,938 : x
  2. Step 2: Convert to fraction form
    18,992/27,938 = 27,938/x
  3. Step 3: Cross multiply
    18,992x = 27,938 × 27,938
  4. Step 4: Simplify right side
    18,992x = 780,531,844
  5. Step 5: Solve for x
    x = 780,531,844/18,992
  6. Step 6: Final answer
    x = 41,097.93

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.