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Finding the Third Proportional to 20,343.75 and 30,495.75

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Solution

The third proportional to 20,343.75 and 30,495.75 is: 45,713.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.75 : 30,495.75 = 30,495.75 : x
  2. Step 2: Convert to fraction form
    20,343.75/30,495.75 = 30,495.75/x
  3. Step 3: Cross multiply
    20,343.75x = 30,495.75 × 30,495.75
  4. Step 4: Simplify right side
    20,343.75x = 929,990,768.06
  5. Step 5: Solve for x
    x = 929,990,768.06/20,343.75
  6. Step 6: Final answer
    x = 45,713.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.