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Finding the Third Proportional to 13,718.11 and 20,486.04

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Solution

The third proportional to 13,718.11 and 20,486.04 is: 30,592.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.11 : 20,486.04 = 20,486.04 : x
  2. Step 2: Convert to fraction form
    13,718.11/20,486.04 = 20,486.04/x
  3. Step 3: Cross multiply
    13,718.11x = 20,486.04 × 20,486.04
  4. Step 4: Simplify right side
    13,718.11x = 419,677,796.47
  5. Step 5: Solve for x
    x = 419,677,796.47/13,718.11
  6. Step 6: Final answer
    x = 30,592.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.