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Finding the Third Proportional to 533 and 583

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Solution

The third proportional to 533 and 583 is: 637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    533 : 583 = 583 : x
  2. Step 2: Convert to fraction form
    533/583 = 583/x
  3. Step 3: Cross multiply
    533x = 583 × 583
  4. Step 4: Simplify right side
    533x = 339,889
  5. Step 5: Solve for x
    x = 339,889/533
  6. Step 6: Final answer
    x = 637.69

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.