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Finding the Fourth Proportional to 18,379.91, 27,574.49 and 5,901.05

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Solution

The fourth proportional to 18,379.91, 27,574.49 and 5,901.05 is: 8,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.91 : 27,574.49 = 5,901.05 : x
  2. Step 2: Convert to fraction form
    18,379.91/27,574.49 = 5,901.05/x
  3. Step 3: Cross multiply
    18,379.91x = 27,574.49 × 5,901.05
  4. Step 4: Simplify right side
    18,379.91x = 162,718,414.71
  5. Step 5: Solve for x
    x = 162,718,414.71/18,379.91
  6. Step 6: Final answer
    x = 8,853.06

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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.