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Finding the Fourth Proportional to 18,043.22, 27,052.11 and 6,940.58

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Solution

The fourth proportional to 18,043.22, 27,052.11 and 6,940.58 is: 10,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,043.22 : 27,052.11 = 6,940.58 : x
  2. Step 2: Convert to fraction form
    18,043.22/27,052.11 = 6,940.58/x
  3. Step 3: Cross multiply
    18,043.22x = 27,052.11 × 6,940.58
  4. Step 4: Simplify right side
    18,043.22x = 187,757,333.62
  5. Step 5: Solve for x
    x = 187,757,333.62/18,043.22
  6. Step 6: Final answer
    x = 10,405.98

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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.