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Finding the Third Proportional to 3,330 and 4,995

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Solution

The third proportional to 3,330 and 4,995 is: 7,492.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330 : 4,995 = 4,995 : x
  2. Step 2: Convert to fraction form
    3,330/4,995 = 4,995/x
  3. Step 3: Cross multiply
    3,330x = 4,995 × 4,995
  4. Step 4: Simplify right side
    3,330x = 24,950,025
  5. Step 5: Solve for x
    x = 24,950,025/3,330
  6. Step 6: Final answer
    x = 7,492.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.