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Finding the Fourth Proportional to 6,942.62, 9,580.78 and 3,755.91

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Solution

The fourth proportional to 6,942.62, 9,580.78 and 3,755.91 is: 5,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.62 : 9,580.78 = 3,755.91 : x
  2. Step 2: Convert to fraction form
    6,942.62/9,580.78 = 3,755.91/x
  3. Step 3: Cross multiply
    6,942.62x = 9,580.78 × 3,755.91
  4. Step 4: Simplify right side
    6,942.62x = 35,984,547.41
  5. Step 5: Solve for x
    x = 35,984,547.41/6,942.62
  6. Step 6: Final answer
    x = 5,183.14

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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.