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Finding the Fourth Proportional to 18,443.88, 27,659.90 and 5,961.24

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Solution

The fourth proportional to 18,443.88, 27,659.90 and 5,961.24 is: 8,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.88 : 27,659.90 = 5,961.24 : x
  2. Step 2: Convert to fraction form
    18,443.88/27,659.90 = 5,961.24/x
  3. Step 3: Cross multiply
    18,443.88x = 27,659.90 × 5,961.24
  4. Step 4: Simplify right side
    18,443.88x = 164,887,302.28
  5. Step 5: Solve for x
    x = 164,887,302.28/18,443.88
  6. Step 6: Final answer
    x = 8,939.95

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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.