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Finding the Fourth Proportional to 18,649.08, 27,993.06 and 8,268.12

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Solution

The fourth proportional to 18,649.08, 27,993.06 and 8,268.12 is: 12,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.08 : 27,993.06 = 8,268.12 : x
  2. Step 2: Convert to fraction form
    18,649.08/27,993.06 = 8,268.12/x
  3. Step 3: Cross multiply
    18,649.08x = 27,993.06 × 8,268.12
  4. Step 4: Simplify right side
    18,649.08x = 231,449,979.25
  5. Step 5: Solve for x
    x = 231,449,979.25/18,649.08
  6. Step 6: Final answer
    x = 12,410.80

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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.