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Finding the Fourth Proportional to 16,511.68, 22,786.22 and 8,958.04

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Solution

The fourth proportional to 16,511.68, 22,786.22 and 8,958.04 is: 12,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,511.68 : 22,786.22 = 8,958.04 : x
  2. Step 2: Convert to fraction form
    16,511.68/22,786.22 = 8,958.04/x
  3. Step 3: Cross multiply
    16,511.68x = 22,786.22 × 8,958.04
  4. Step 4: Simplify right side
    16,511.68x = 204,119,870.21
  5. Step 5: Solve for x
    x = 204,119,870.21/16,511.68
  6. Step 6: Final answer
    x = 12,362.15

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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.