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Finding the Third Proportional to 3,114.75 and 5,191.13

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Solution

The third proportional to 3,114.75 and 5,191.13 is: 8,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.75 : 5,191.13 = 5,191.13 : x
  2. Step 2: Convert to fraction form
    3,114.75/5,191.13 = 5,191.13/x
  3. Step 3: Cross multiply
    3,114.75x = 5,191.13 × 5,191.13
  4. Step 4: Simplify right side
    3,114.75x = 26,947,778.77
  5. Step 5: Solve for x
    x = 26,947,778.77/3,114.75
  6. Step 6: Final answer
    x = 8,651.67

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.