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Finding the Fourth Proportional to 8,651.12, 11,936.07 and 4,872.96

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Solution

The fourth proportional to 8,651.12, 11,936.07 and 4,872.96 is: 6,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.12 : 11,936.07 = 4,872.96 : x
  2. Step 2: Convert to fraction form
    8,651.12/11,936.07 = 4,872.96/x
  3. Step 3: Cross multiply
    8,651.12x = 11,936.07 × 4,872.96
  4. Step 4: Simplify right side
    8,651.12x = 58,163,991.67
  5. Step 5: Solve for x
    x = 58,163,991.67/8,651.12
  6. Step 6: Final answer
    x = 6,723.29

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1.5x scale

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.