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Finding the Third Proportional to 1,217 and 1,934

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Solution

The third proportional to 1,217 and 1,934 is: 3,073.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217 : 1,934 = 1,934 : x
  2. Step 2: Convert to fraction form
    1,217/1,934 = 1,934/x
  3. Step 3: Cross multiply
    1,217x = 1,934 × 1,934
  4. Step 4: Simplify right side
    1,217x = 3,740,356
  5. Step 5: Solve for x
    x = 3,740,356/1,217
  6. Step 6: Final answer
    x = 3,073.42

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.