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Finding the Third Proportional to 254.88 and 548.94

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Solution

The third proportional to 254.88 and 548.94 is: 1,182.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.88 : 548.94 = 548.94 : x
  2. Step 2: Convert to fraction form
    254.88/548.94 = 548.94/x
  3. Step 3: Cross multiply
    254.88x = 548.94 × 548.94
  4. Step 4: Simplify right side
    254.88x = 301,332.38
  5. Step 5: Solve for x
    x = 301,332.38/254.88
  6. Step 6: Final answer
    x = 1,182.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.