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Finding the Third Proportional to 15,263.44 and 20,115.84

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Solution

The third proportional to 15,263.44 and 20,115.84 is: 26,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,263.44 : 20,115.84 = 20,115.84 : x
  2. Step 2: Convert to fraction form
    15,263.44/20,115.84 = 20,115.84/x
  3. Step 3: Cross multiply
    15,263.44x = 20,115.84 × 20,115.84
  4. Step 4: Simplify right side
    15,263.44x = 404,647,169.77
  5. Step 5: Solve for x
    x = 404,647,169.77/15,263.44
  6. Step 6: Final answer
    x = 26,510.88

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.