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Finding the Third Proportional to 20,400.75 and 41,373

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Solution

The third proportional to 20,400.75 and 41,373 is: 83,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.75 : 41,373 = 41,373 : x
  2. Step 2: Convert to fraction form
    20,400.75/41,373 = 41,373/x
  3. Step 3: Cross multiply
    20,400.75x = 41,373 × 41,373
  4. Step 4: Simplify right side
    20,400.75x = 1,711,725,129
  5. Step 5: Solve for x
    x = 1,711,725,129/20,400.75
  6. Step 6: Final answer
    x = 83,905.01

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.