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Finding the Fourth Proportional to 18,022.76, 24,882.36 and 12,366.80

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Solution

The fourth proportional to 18,022.76, 24,882.36 and 12,366.80 is: 17,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,022.76 : 24,882.36 = 12,366.80 : x
  2. Step 2: Convert to fraction form
    18,022.76/24,882.36 = 12,366.80/x
  3. Step 3: Cross multiply
    18,022.76x = 24,882.36 × 12,366.80
  4. Step 4: Simplify right side
    18,022.76x = 307,715,169.65
  5. Step 5: Solve for x
    x = 307,715,169.65/18,022.76
  6. Step 6: Final answer
    x = 17,073.70

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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.