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Finding the Third Proportional to 2,007.50 and 4,087

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Solution

The third proportional to 2,007.50 and 4,087 is: 8,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.50 : 4,087 = 4,087 : x
  2. Step 2: Convert to fraction form
    2,007.50/4,087 = 4,087/x
  3. Step 3: Cross multiply
    2,007.50x = 4,087 × 4,087
  4. Step 4: Simplify right side
    2,007.50x = 16,703,569
  5. Step 5: Solve for x
    x = 16,703,569/2,007.50
  6. Step 6: Final answer
    x = 8,320.58

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.