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Finding the Third Proportional to 3,224 and 4,980

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Solution

The third proportional to 3,224 and 4,980 is: 7,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,224 : 4,980 = 4,980 : x
  2. Step 2: Convert to fraction form
    3,224/4,980 = 4,980/x
  3. Step 3: Cross multiply
    3,224x = 4,980 × 4,980
  4. Step 4: Simplify right side
    3,224x = 24,800,400
  5. Step 5: Solve for x
    x = 24,800,400/3,224
  6. Step 6: Final answer
    x = 7,692.43

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.