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Finding the Fourth Proportional to 6,411.16, 8,845.43 and 3,756.70

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Solution

The fourth proportional to 6,411.16, 8,845.43 and 3,756.70 is: 5,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.16 : 8,845.43 = 3,756.70 : x
  2. Step 2: Convert to fraction form
    6,411.16/8,845.43 = 3,756.70/x
  3. Step 3: Cross multiply
    6,411.16x = 8,845.43 × 3,756.70
  4. Step 4: Simplify right side
    6,411.16x = 33,229,626.88
  5. Step 5: Solve for x
    x = 33,229,626.88/6,411.16
  6. Step 6: Final answer
    x = 5,183.09

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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.