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Finding the Fourth Proportional to 8,833.44, 12,163.44 and 8,639.04

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Solution

The fourth proportional to 8,833.44, 12,163.44 and 8,639.04 is: 11,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.44 : 12,163.44 = 8,639.04 : x
  2. Step 2: Convert to fraction form
    8,833.44/12,163.44 = 8,639.04/x
  3. Step 3: Cross multiply
    8,833.44x = 12,163.44 × 8,639.04
  4. Step 4: Simplify right side
    8,833.44x = 105,080,444.70
  5. Step 5: Solve for x
    x = 105,080,444.70/8,833.44
  6. Step 6: Final answer
    x = 11,895.76

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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.