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Finding the Third Proportional to 11,948 and 18,738

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Solution

The third proportional to 11,948 and 18,738 is: 29,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948 : 18,738 = 18,738 : x
  2. Step 2: Convert to fraction form
    11,948/18,738 = 18,738/x
  3. Step 3: Cross multiply
    11,948x = 18,738 × 18,738
  4. Step 4: Simplify right side
    11,948x = 351,112,644
  5. Step 5: Solve for x
    x = 351,112,644/11,948
  6. Step 6: Final answer
    x = 29,386.73

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.