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Finding the Fourth Proportional to 6,474.66, 8,935.86 and 3,956.22

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Solution

The fourth proportional to 6,474.66, 8,935.86 and 3,956.22 is: 5,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.66 : 8,935.86 = 3,956.22 : x
  2. Step 2: Convert to fraction form
    6,474.66/8,935.86 = 3,956.22/x
  3. Step 3: Cross multiply
    6,474.66x = 8,935.86 × 3,956.22
  4. Step 4: Simplify right side
    6,474.66x = 35,352,228.05
  5. Step 5: Solve for x
    x = 35,352,228.05/6,474.66
  6. Step 6: Final answer
    x = 5,460.09

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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.