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Finding the Third Proportional to 1,916 and 4,400

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Solution

The third proportional to 1,916 and 4,400 is: 10,104.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916 : 4,400 = 4,400 : x
  2. Step 2: Convert to fraction form
    1,916/4,400 = 4,400/x
  3. Step 3: Cross multiply
    1,916x = 4,400 × 4,400
  4. Step 4: Simplify right side
    1,916x = 19,360,000
  5. Step 5: Solve for x
    x = 19,360,000/1,916
  6. Step 6: Final answer
    x = 10,104.38

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.