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Finding the Fourth Proportional to 18,599.74, 27,891.99 and 9,236.38

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Solution

The fourth proportional to 18,599.74, 27,891.99 and 9,236.38 is: 13,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599.74 : 27,891.99 = 9,236.38 : x
  2. Step 2: Convert to fraction form
    18,599.74/27,891.99 = 9,236.38/x
  3. Step 3: Cross multiply
    18,599.74x = 27,891.99 × 9,236.38
  4. Step 4: Simplify right side
    18,599.74x = 257,621,018.60
  5. Step 5: Solve for x
    x = 257,621,018.60/18,599.74
  6. Step 6: Final answer
    x = 13,850.79

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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.