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Finding the Third Proportional to 4,219 and 7,493

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Solution

The third proportional to 4,219 and 7,493 is: 13,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219 : 7,493 = 7,493 : x
  2. Step 2: Convert to fraction form
    4,219/7,493 = 7,493/x
  3. Step 3: Cross multiply
    4,219x = 7,493 × 7,493
  4. Step 4: Simplify right side
    4,219x = 56,145,049
  5. Step 5: Solve for x
    x = 56,145,049/4,219
  6. Step 6: Final answer
    x = 13,307.67

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.