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Finding the Third Proportional to 1,796 and 3,930

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Solution

The third proportional to 1,796 and 3,930 is: 8,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796 : 3,930 = 3,930 : x
  2. Step 2: Convert to fraction form
    1,796/3,930 = 3,930/x
  3. Step 3: Cross multiply
    1,796x = 3,930 × 3,930
  4. Step 4: Simplify right side
    1,796x = 15,444,900
  5. Step 5: Solve for x
    x = 15,444,900/1,796
  6. Step 6: Final answer
    x = 8,599.61

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.