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Finding the Third Proportional to 3,357 and 8,119.13

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Solution

The third proportional to 3,357 and 8,119.13 is: 19,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357 : 8,119.13 = 8,119.13 : x
  2. Step 2: Convert to fraction form
    3,357/8,119.13 = 8,119.13/x
  3. Step 3: Cross multiply
    3,357x = 8,119.13 × 8,119.13
  4. Step 4: Simplify right side
    3,357x = 65,920,190.77
  5. Step 5: Solve for x
    x = 65,920,190.77/3,357
  6. Step 6: Final answer
    x = 19,636.64

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.