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Finding the Third Proportional to 263.75 and 558

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Solution

The third proportional to 263.75 and 558 is: 1,180.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.75 : 558 = 558 : x
  2. Step 2: Convert to fraction form
    263.75/558 = 558/x
  3. Step 3: Cross multiply
    263.75x = 558 × 558
  4. Step 4: Simplify right side
    263.75x = 311,364
  5. Step 5: Solve for x
    x = 311,364/263.75
  6. Step 6: Final answer
    x = 1,180.53

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.