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Finding the Fourth Proportional to 18,458.62, 27,694.81 and 11,068.38

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Solution

The fourth proportional to 18,458.62, 27,694.81 and 11,068.38 is: 16,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.62 : 27,694.81 = 11,068.38 : x
  2. Step 2: Convert to fraction form
    18,458.62/27,694.81 = 11,068.38/x
  3. Step 3: Cross multiply
    18,458.62x = 27,694.81 × 11,068.38
  4. Step 4: Simplify right side
    18,458.62x = 306,536,694.94
  5. Step 5: Solve for x
    x = 306,536,694.94/18,458.62
  6. Step 6: Final answer
    x = 16,606.70

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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.