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Finding the Fourth Proportional to 8,474.77, 11,694.94 and 4,697.79

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Solution

The fourth proportional to 8,474.77, 11,694.94 and 4,697.79 is: 6,482.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.77 : 11,694.94 = 4,697.79 : x
  2. Step 2: Convert to fraction form
    8,474.77/11,694.94 = 4,697.79/x
  3. Step 3: Cross multiply
    8,474.77x = 11,694.94 × 4,697.79
  4. Step 4: Simplify right side
    8,474.77x = 54,940,372.18
  5. Step 5: Solve for x
    x = 54,940,372.18/8,474.77
  6. Step 6: Final answer
    x = 6,482.82

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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.