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Finding the Third Proportional to 20,769.75 and 45,063

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Solution

The third proportional to 20,769.75 and 45,063 is: 97,770.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769.75 : 45,063 = 45,063 : x
  2. Step 2: Convert to fraction form
    20,769.75/45,063 = 45,063/x
  3. Step 3: Cross multiply
    20,769.75x = 45,063 × 45,063
  4. Step 4: Simplify right side
    20,769.75x = 2,030,673,969
  5. Step 5: Solve for x
    x = 2,030,673,969/20,769.75
  6. Step 6: Final answer
    x = 97,770.75

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.