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Finding the Third Proportional to 7,401 and 15,900

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Solution

The third proportional to 7,401 and 15,900 is: 34,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,401 : 15,900 = 15,900 : x
  2. Step 2: Convert to fraction form
    7,401/15,900 = 15,900/x
  3. Step 3: Cross multiply
    7,401x = 15,900 × 15,900
  4. Step 4: Simplify right side
    7,401x = 252,810,000
  5. Step 5: Solve for x
    x = 252,810,000/7,401
  6. Step 6: Final answer
    x = 34,158.90

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.