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Finding the Third Proportional to 3,330 and 7,236

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Solution

The third proportional to 3,330 and 7,236 is: 15,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330 : 7,236 = 7,236 : x
  2. Step 2: Convert to fraction form
    3,330/7,236 = 7,236/x
  3. Step 3: Cross multiply
    3,330x = 7,236 × 7,236
  4. Step 4: Simplify right side
    3,330x = 52,359,696
  5. Step 5: Solve for x
    x = 52,359,696/3,330
  6. Step 6: Final answer
    x = 15,723.63

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.