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Finding the Third Proportional to 3,903 and 7,416.75

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Solution

The third proportional to 3,903 and 7,416.75 is: 14,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903 : 7,416.75 = 7,416.75 : x
  2. Step 2: Convert to fraction form
    3,903/7,416.75 = 7,416.75/x
  3. Step 3: Cross multiply
    3,903x = 7,416.75 × 7,416.75
  4. Step 4: Simplify right side
    3,903x = 55,008,180.56
  5. Step 5: Solve for x
    x = 55,008,180.56/3,903
  6. Step 6: Final answer
    x = 14,093.82

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.