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Finding the Fourth Proportional to 18,406.73, 27,611.31 and 11,058.41

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Solution

The fourth proportional to 18,406.73, 27,611.31 and 11,058.41 is: 16,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.73 : 27,611.31 = 11,058.41 : x
  2. Step 2: Convert to fraction form
    18,406.73/27,611.31 = 11,058.41/x
  3. Step 3: Cross multiply
    18,406.73x = 27,611.31 × 11,058.41
  4. Step 4: Simplify right side
    18,406.73x = 305,337,048.56
  5. Step 5: Solve for x
    x = 305,337,048.56/18,406.73
  6. Step 6: Final answer
    x = 16,588.34

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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.