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Finding the Third Proportional to 57,321.75 and 76,449.75

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Solution

The third proportional to 57,321.75 and 76,449.75 is: 101,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,321.75 : 76,449.75 = 76,449.75 : x
  2. Step 2: Convert to fraction form
    57,321.75/76,449.75 = 76,449.75/x
  3. Step 3: Cross multiply
    57,321.75x = 76,449.75 × 76,449.75
  4. Step 4: Simplify right side
    57,321.75x = 5,844,564,275.06
  5. Step 5: Solve for x
    x = 5,844,564,275.06/57,321.75
  6. Step 6: Final answer
    x = 101,960.67

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.