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Finding the Third Proportional to 3,504 and 6,960

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Solution

The third proportional to 3,504 and 6,960 is: 13,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504 : 6,960 = 6,960 : x
  2. Step 2: Convert to fraction form
    3,504/6,960 = 6,960/x
  3. Step 3: Cross multiply
    3,504x = 6,960 × 6,960
  4. Step 4: Simplify right side
    3,504x = 48,441,600
  5. Step 5: Solve for x
    x = 48,441,600/3,504
  6. Step 6: Final answer
    x = 13,824.66

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Why These Related Problems?

These problems maintain the same ratio (1.99) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.