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Finding the Third Proportional to 20,241 and 30,631.50

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Solution

The third proportional to 20,241 and 30,631.50 is: 46,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241 : 30,631.50 = 30,631.50 : x
  2. Step 2: Convert to fraction form
    20,241/30,631.50 = 30,631.50/x
  3. Step 3: Cross multiply
    20,241x = 30,631.50 × 30,631.50
  4. Step 4: Simplify right side
    20,241x = 938,288,792.25
  5. Step 5: Solve for x
    x = 938,288,792.25/20,241
  6. Step 6: Final answer
    x = 46,355.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.