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Finding the Third Proportional to 3,829.78 and 7,965.84

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Solution

The third proportional to 3,829.78 and 7,965.84 is: 16,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.78 : 7,965.84 = 7,965.84 : x
  2. Step 2: Convert to fraction form
    3,829.78/7,965.84 = 7,965.84/x
  3. Step 3: Cross multiply
    3,829.78x = 7,965.84 × 7,965.84
  4. Step 4: Simplify right side
    3,829.78x = 63,454,666.65
  5. Step 5: Solve for x
    x = 63,454,666.65/3,829.78
  6. Step 6: Final answer
    x = 16,568.74

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.