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Finding the Third Proportional to 15,059.25 and 20,189.25

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Solution

The third proportional to 15,059.25 and 20,189.25 is: 27,066.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,059.25 : 20,189.25 = 20,189.25 : x
  2. Step 2: Convert to fraction form
    15,059.25/20,189.25 = 20,189.25/x
  3. Step 3: Cross multiply
    15,059.25x = 20,189.25 × 20,189.25
  4. Step 4: Simplify right side
    15,059.25x = 407,605,815.56
  5. Step 5: Solve for x
    x = 407,605,815.56/15,059.25
  6. Step 6: Final answer
    x = 27,066.81

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.