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Finding the Third Proportional to 1,221.75 and 2,546.44

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Solution

The third proportional to 1,221.75 and 2,546.44 is: 5,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221.75 : 2,546.44 = 2,546.44 : x
  2. Step 2: Convert to fraction form
    1,221.75/2,546.44 = 2,546.44/x
  3. Step 3: Cross multiply
    1,221.75x = 2,546.44 × 2,546.44
  4. Step 4: Simplify right side
    1,221.75x = 6,484,343.94
  5. Step 5: Solve for x
    x = 6,484,343.94/1,221.75
  6. Step 6: Final answer
    x = 5,307.42

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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.