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Finding the Fourth Proportional to 6,930.43, 9,563.99 and 3,786.62

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Solution

The fourth proportional to 6,930.43, 9,563.99 and 3,786.62 is: 5,225.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.43 : 9,563.99 = 3,786.62 : x
  2. Step 2: Convert to fraction form
    6,930.43/9,563.99 = 3,786.62/x
  3. Step 3: Cross multiply
    6,930.43x = 9,563.99 × 3,786.62
  4. Step 4: Simplify right side
    6,930.43x = 36,215,129.06
  5. Step 5: Solve for x
    x = 36,215,129.06/6,930.43
  6. Step 6: Final answer
    x = 5,225.53

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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.