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Finding the Third Proportional to 7,796 and 16,990

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Solution

The third proportional to 7,796 and 16,990 is: 37,026.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,796 : 16,990 = 16,990 : x
  2. Step 2: Convert to fraction form
    7,796/16,990 = 16,990/x
  3. Step 3: Cross multiply
    7,796x = 16,990 × 16,990
  4. Step 4: Simplify right side
    7,796x = 288,660,100
  5. Step 5: Solve for x
    x = 288,660,100/7,796
  6. Step 6: Final answer
    x = 37,026.69

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.