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Finding the Fourth Proportional to 18,541.80, 27,817.02 and 5,394.42

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Solution

The fourth proportional to 18,541.80, 27,817.02 and 5,394.42 is: 8,092.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541.80 : 27,817.02 = 5,394.42 : x
  2. Step 2: Convert to fraction form
    18,541.80/27,817.02 = 5,394.42/x
  3. Step 3: Cross multiply
    18,541.80x = 27,817.02 × 5,394.42
  4. Step 4: Simplify right side
    18,541.80x = 150,056,689.03
  5. Step 5: Solve for x
    x = 150,056,689.03/18,541.80
  6. Step 6: Final answer
    x = 8,092.89

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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.