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Finding the Fourth Proportional to 16,530.62, 22,812.17 and 8,976.88

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Solution

The fourth proportional to 16,530.62, 22,812.17 and 8,976.88 is: 12,388.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,530.62 : 22,812.17 = 8,976.88 : x
  2. Step 2: Convert to fraction form
    16,530.62/22,812.17 = 8,976.88/x
  3. Step 3: Cross multiply
    16,530.62x = 22,812.17 × 8,976.88
  4. Step 4: Simplify right side
    16,530.62x = 204,782,067.75
  5. Step 5: Solve for x
    x = 204,782,067.75/16,530.62
  6. Step 6: Final answer
    x = 12,388.05

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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.