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Finding the Fourth Proportional to 18,269.40, 27,414.90 and 6,581.10

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Solution

The fourth proportional to 18,269.40, 27,414.90 and 6,581.10 is: 9,875.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.40 : 27,414.90 = 6,581.10 : x
  2. Step 2: Convert to fraction form
    18,269.40/27,414.90 = 6,581.10/x
  3. Step 3: Cross multiply
    18,269.40x = 27,414.90 × 6,581.10
  4. Step 4: Simplify right side
    18,269.40x = 180,420,198.39
  5. Step 5: Solve for x
    x = 180,420,198.39/18,269.40
  6. Step 6: Final answer
    x = 9,875.54

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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.