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Finding the Third Proportional to 1,968 and 2,400

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Solution

The third proportional to 1,968 and 2,400 is: 2,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968 : 2,400 = 2,400 : x
  2. Step 2: Convert to fraction form
    1,968/2,400 = 2,400/x
  3. Step 3: Cross multiply
    1,968x = 2,400 × 2,400
  4. Step 4: Simplify right side
    1,968x = 5,760,000
  5. Step 5: Solve for x
    x = 5,760,000/1,968
  6. Step 6: Final answer
    x = 2,926.83

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.