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Finding the Third Proportional to 939 and 2,073

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Solution

The third proportional to 939 and 2,073 is: 4,576.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    939 : 2,073 = 2,073 : x
  2. Step 2: Convert to fraction form
    939/2,073 = 2,073/x
  3. Step 3: Cross multiply
    939x = 2,073 × 2,073
  4. Step 4: Simplify right side
    939x = 4,297,329
  5. Step 5: Solve for x
    x = 4,297,329/939
  6. Step 6: Final answer
    x = 4,576.50

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.