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Finding the Fourth Proportional to 22,906.80, 34,366.68 and 8,871.12

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Solution

The fourth proportional to 22,906.80, 34,366.68 and 8,871.12 is: 13,309.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,906.80 : 34,366.68 = 8,871.12 : x
  2. Step 2: Convert to fraction form
    22,906.80/34,366.68 = 8,871.12/x
  3. Step 3: Cross multiply
    22,906.80x = 34,366.68 × 8,871.12
  4. Step 4: Simplify right side
    22,906.80x = 304,870,942.28
  5. Step 5: Solve for x
    x = 304,870,942.28/22,906.80
  6. Step 6: Final answer
    x = 13,309.19

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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.