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Finding the Third Proportional to 266.75 and 582.88

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Solution

The third proportional to 266.75 and 582.88 is: 1,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.75 : 582.88 = 582.88 : x
  2. Step 2: Convert to fraction form
    266.75/582.88 = 582.88/x
  3. Step 3: Cross multiply
    266.75x = 582.88 × 582.88
  4. Step 4: Simplify right side
    266.75x = 339,743.27
  5. Step 5: Solve for x
    x = 339,743.27/266.75
  6. Step 6: Final answer
    x = 1,273.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.