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Finding the Third Proportional to 774 and 2,019

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Solution

The third proportional to 774 and 2,019 is: 5,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    774 : 2,019 = 2,019 : x
  2. Step 2: Convert to fraction form
    774/2,019 = 2,019/x
  3. Step 3: Cross multiply
    774x = 2,019 × 2,019
  4. Step 4: Simplify right side
    774x = 4,076,361
  5. Step 5: Solve for x
    x = 4,076,361/774
  6. Step 6: Final answer
    x = 5,266.62

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Why These Related Problems?

These problems maintain the same ratio (2.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.