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Finding the Third Proportional to 548.88 and 1,219.25

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Solution

The third proportional to 548.88 and 1,219.25 is: 2,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.88 : 1,219.25 = 1,219.25 : x
  2. Step 2: Convert to fraction form
    548.88/1,219.25 = 1,219.25/x
  3. Step 3: Cross multiply
    548.88x = 1,219.25 × 1,219.25
  4. Step 4: Simplify right side
    548.88x = 1,486,570.56
  5. Step 5: Solve for x
    x = 1,486,570.56/548.88
  6. Step 6: Final answer
    x = 2,708.40

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.