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Finding the Third Proportional to 11,238.75 and 17,628.75

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Solution

The third proportional to 11,238.75 and 17,628.75 is: 27,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.75 : 17,628.75 = 17,628.75 : x
  2. Step 2: Convert to fraction form
    11,238.75/17,628.75 = 17,628.75/x
  3. Step 3: Cross multiply
    11,238.75x = 17,628.75 × 17,628.75
  4. Step 4: Simplify right side
    11,238.75x = 310,772,826.56
  5. Step 5: Solve for x
    x = 310,772,826.56/11,238.75
  6. Step 6: Final answer
    x = 27,651.90

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.