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Finding the Fourth Proportional to 18,047.61, 27,067.31 and 8,682.85

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Solution

The fourth proportional to 18,047.61, 27,067.31 and 8,682.85 is: 13,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,047.61 : 27,067.31 = 8,682.85 : x
  2. Step 2: Convert to fraction form
    18,047.61/27,067.31 = 8,682.85/x
  3. Step 3: Cross multiply
    18,047.61x = 27,067.31 × 8,682.85
  4. Step 4: Simplify right side
    18,047.61x = 235,021,312.20
  5. Step 5: Solve for x
    x = 235,021,312.20/18,047.61
  6. Step 6: Final answer
    x = 13,022.30

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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.