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Finding the Third Proportional to 533.25 and 649.50

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Solution

The third proportional to 533.25 and 649.50 is: 791.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.25 : 649.50 = 649.50 : x
  2. Step 2: Convert to fraction form
    533.25/649.50 = 649.50/x
  3. Step 3: Cross multiply
    533.25x = 649.50 × 649.50
  4. Step 4: Simplify right side
    533.25x = 421,850.25
  5. Step 5: Solve for x
    x = 421,850.25/533.25
  6. Step 6: Final answer
    x = 791.09

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.