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Finding the Third Proportional to 559.50 and 1,227

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Solution

The third proportional to 559.50 and 1,227 is: 2,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.50 : 1,227 = 1,227 : x
  2. Step 2: Convert to fraction form
    559.50/1,227 = 1,227/x
  3. Step 3: Cross multiply
    559.50x = 1,227 × 1,227
  4. Step 4: Simplify right side
    559.50x = 1,505,529
  5. Step 5: Solve for x
    x = 1,505,529/559.50
  6. Step 6: Final answer
    x = 2,690.85

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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.