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Finding the Third Proportional to 4,481.16 and 9,739.69

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Solution

The third proportional to 4,481.16 and 9,739.69 is: 21,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.16 : 9,739.69 = 9,739.69 : x
  2. Step 2: Convert to fraction form
    4,481.16/9,739.69 = 9,739.69/x
  3. Step 3: Cross multiply
    4,481.16x = 9,739.69 × 9,739.69
  4. Step 4: Simplify right side
    4,481.16x = 94,861,512.60
  5. Step 5: Solve for x
    x = 94,861,512.60/4,481.16
  6. Step 6: Final answer
    x = 21,168.98

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.