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Finding the Third Proportional to 15,360.75 and 20,251.13

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Solution

The third proportional to 15,360.75 and 20,251.13 is: 26,698.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.75 : 20,251.13 = 20,251.13 : x
  2. Step 2: Convert to fraction form
    15,360.75/20,251.13 = 20,251.13/x
  3. Step 3: Cross multiply
    15,360.75x = 20,251.13 × 20,251.13
  4. Step 4: Simplify right side
    15,360.75x = 410,108,063.77
  5. Step 5: Solve for x
    x = 410,108,063.77/15,360.75
  6. Step 6: Final answer
    x = 26,698.44

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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.