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Finding the Fourth Proportional to 8,893.36, 12,263.72 and 6,239.92

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Solution

The fourth proportional to 8,893.36, 12,263.72 and 6,239.92 is: 8,604.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.36 : 12,263.72 = 6,239.92 : x
  2. Step 2: Convert to fraction form
    8,893.36/12,263.72 = 6,239.92/x
  3. Step 3: Cross multiply
    8,893.36x = 12,263.72 × 6,239.92
  4. Step 4: Simplify right side
    8,893.36x = 76,524,631.70
  5. Step 5: Solve for x
    x = 76,524,631.70/8,893.36
  6. Step 6: Final answer
    x = 8,604.69

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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.