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Finding the Third Proportional to 3,668.25 and 5,519.81

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Solution

The third proportional to 3,668.25 and 5,519.81 is: 8,305.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.25 : 5,519.81 = 5,519.81 : x
  2. Step 2: Convert to fraction form
    3,668.25/5,519.81 = 5,519.81/x
  3. Step 3: Cross multiply
    3,668.25x = 5,519.81 × 5,519.81
  4. Step 4: Simplify right side
    3,668.25x = 30,468,330.04
  5. Step 5: Solve for x
    x = 30,468,330.04/3,668.25
  6. Step 6: Final answer
    x = 8,305.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.