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Finding the Fourth Proportional to 18,653.44, 27,983.13 and 6,173.92

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Solution

The fourth proportional to 18,653.44, 27,983.13 and 6,173.92 is: 9,261.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.44 : 27,983.13 = 6,173.92 : x
  2. Step 2: Convert to fraction form
    18,653.44/27,983.13 = 6,173.92/x
  3. Step 3: Cross multiply
    18,653.44x = 27,983.13 × 6,173.92
  4. Step 4: Simplify right side
    18,653.44x = 172,765,605.97
  5. Step 5: Solve for x
    x = 172,765,605.97/18,653.44
  6. Step 6: Final answer
    x = 9,261.86

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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.