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Finding the Fourth Proportional to 13,682.56, 18,879.24 and 8,093.92

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Solution

The fourth proportional to 13,682.56, 18,879.24 and 8,093.92 is: 11,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.56 : 18,879.24 = 8,093.92 : x
  2. Step 2: Convert to fraction form
    13,682.56/18,879.24 = 8,093.92/x
  3. Step 3: Cross multiply
    13,682.56x = 18,879.24 × 8,093.92
  4. Step 4: Simplify right side
    13,682.56x = 152,807,058.22
  5. Step 5: Solve for x
    x = 152,807,058.22/13,682.56
  6. Step 6: Final answer
    x = 11,168.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.