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Finding the Third Proportional to 3,824 and 8,819

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Solution

The third proportional to 3,824 and 8,819 is: 20,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824 : 8,819 = 8,819 : x
  2. Step 2: Convert to fraction form
    3,824/8,819 = 8,819/x
  3. Step 3: Cross multiply
    3,824x = 8,819 × 8,819
  4. Step 4: Simplify right side
    3,824x = 77,774,761
  5. Step 5: Solve for x
    x = 77,774,761/3,824
  6. Step 6: Final answer
    x = 20,338.59

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.