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Finding the Third Proportional to 12,579.75 and 20,224.13

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Solution

The third proportional to 12,579.75 and 20,224.13 is: 32,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.75 : 20,224.13 = 20,224.13 : x
  2. Step 2: Convert to fraction form
    12,579.75/20,224.13 = 20,224.13/x
  3. Step 3: Cross multiply
    12,579.75x = 20,224.13 × 20,224.13
  4. Step 4: Simplify right side
    12,579.75x = 409,015,232.02
  5. Step 5: Solve for x
    x = 409,015,232.02/12,579.75
  6. Step 6: Final answer
    x = 32,513.78

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.