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Finding the Third Proportional to 7,403 and 15,225

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Solution

The third proportional to 7,403 and 15,225 is: 31,311.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,403 : 15,225 = 15,225 : x
  2. Step 2: Convert to fraction form
    7,403/15,225 = 15,225/x
  3. Step 3: Cross multiply
    7,403x = 15,225 × 15,225
  4. Step 4: Simplify right side
    7,403x = 231,800,625
  5. Step 5: Solve for x
    x = 231,800,625/7,403
  6. Step 6: Final answer
    x = 31,311.71

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.