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Finding the Third Proportional to 1,216.69 and 2,519.44

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Solution

The third proportional to 1,216.69 and 2,519.44 is: 5,217.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.69 : 2,519.44 = 2,519.44 : x
  2. Step 2: Convert to fraction form
    1,216.69/2,519.44 = 2,519.44/x
  3. Step 3: Cross multiply
    1,216.69x = 2,519.44 × 2,519.44
  4. Step 4: Simplify right side
    1,216.69x = 6,347,565.32
  5. Step 5: Solve for x
    x = 6,347,565.32/1,216.69
  6. Step 6: Final answer
    x = 5,217.09

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.