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Finding the Third Proportional to 3,000 and 5,920

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Solution

The third proportional to 3,000 and 5,920 is: 11,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000 : 5,920 = 5,920 : x
  2. Step 2: Convert to fraction form
    3,000/5,920 = 5,920/x
  3. Step 3: Cross multiply
    3,000x = 5,920 × 5,920
  4. Step 4: Simplify right side
    3,000x = 35,046,400
  5. Step 5: Solve for x
    x = 35,046,400/3,000
  6. Step 6: Final answer
    x = 11,682.13

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.