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Finding the Third Proportional to 25,845.75 and 28,221.75

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Solution

The third proportional to 25,845.75 and 28,221.75 is: 30,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,845.75 : 28,221.75 = 28,221.75 : x
  2. Step 2: Convert to fraction form
    25,845.75/28,221.75 = 28,221.75/x
  3. Step 3: Cross multiply
    25,845.75x = 28,221.75 × 28,221.75
  4. Step 4: Simplify right side
    25,845.75x = 796,467,173.06
  5. Step 5: Solve for x
    x = 796,467,173.06/25,845.75
  6. Step 6: Final answer
    x = 30,816.18

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.