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Finding the Third Proportional to 20,193.75 and 28,905.94

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Solution

The third proportional to 20,193.75 and 28,905.94 is: 41,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.75 : 28,905.94 = 28,905.94 : x
  2. Step 2: Convert to fraction form
    20,193.75/28,905.94 = 28,905.94/x
  3. Step 3: Cross multiply
    20,193.75x = 28,905.94 × 28,905.94
  4. Step 4: Simplify right side
    20,193.75x = 835,553,222.75
  5. Step 5: Solve for x
    x = 835,553,222.75/20,193.75
  6. Step 6: Final answer
    x = 41,376.82

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.