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Finding the Fourth Proportional to 8,410.70, 12,616.05 and 3,474.92

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Solution

The fourth proportional to 8,410.70, 12,616.05 and 3,474.92 is: 5,212.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,410.70 : 12,616.05 = 3,474.92 : x
  2. Step 2: Convert to fraction form
    8,410.70/12,616.05 = 3,474.92/x
  3. Step 3: Cross multiply
    8,410.70x = 12,616.05 × 3,474.92
  4. Step 4: Simplify right side
    8,410.70x = 43,839,764.47
  5. Step 5: Solve for x
    x = 43,839,764.47/8,410.70
  6. Step 6: Final answer
    x = 5,212.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.