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Finding the Third Proportional to 13,224 and 20,080

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Solution

The third proportional to 13,224 and 20,080 is: 30,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,224 : 20,080 = 20,080 : x
  2. Step 2: Convert to fraction form
    13,224/20,080 = 20,080/x
  3. Step 3: Cross multiply
    13,224x = 20,080 × 20,080
  4. Step 4: Simplify right side
    13,224x = 403,206,400
  5. Step 5: Solve for x
    x = 403,206,400/13,224
  6. Step 6: Final answer
    x = 30,490.50

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.