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Finding the Fourth Proportional to 6,962.91, 9,608.81 and 3,819.09

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Solution

The fourth proportional to 6,962.91, 9,608.81 and 3,819.09 is: 5,270.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,962.91 : 9,608.81 = 3,819.09 : x
  2. Step 2: Convert to fraction form
    6,962.91/9,608.81 = 3,819.09/x
  3. Step 3: Cross multiply
    6,962.91x = 9,608.81 × 3,819.09
  4. Step 4: Simplify right side
    6,962.91x = 36,696,891.09
  5. Step 5: Solve for x
    x = 36,696,891.09/6,962.91
  6. Step 6: Final answer
    x = 5,270.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.