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Finding the Third Proportional to 938 and 1,886

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Solution

The third proportional to 938 and 1,886 is: 3,792.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    938 : 1,886 = 1,886 : x
  2. Step 2: Convert to fraction form
    938/1,886 = 1,886/x
  3. Step 3: Cross multiply
    938x = 1,886 × 1,886
  4. Step 4: Simplify right side
    938x = 3,556,996
  5. Step 5: Solve for x
    x = 3,556,996/938
  6. Step 6: Final answer
    x = 3,792.11

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.