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Finding the Third Proportional to 4,467.38 and 9,619.31

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Solution

The third proportional to 4,467.38 and 9,619.31 is: 20,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,467.38 : 9,619.31 = 9,619.31 : x
  2. Step 2: Convert to fraction form
    4,467.38/9,619.31 = 9,619.31/x
  3. Step 3: Cross multiply
    4,467.38x = 9,619.31 × 9,619.31
  4. Step 4: Simplify right side
    4,467.38x = 92,531,172.97
  5. Step 5: Solve for x
    x = 92,531,172.97/4,467.38
  6. Step 6: Final answer
    x = 20,712.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.