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Finding the Fourth Proportional to 18,641.85, 27,960.44 and 6,158.85

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Solution

The fourth proportional to 18,641.85, 27,960.44 and 6,158.85 is: 9,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.85 : 27,960.44 = 6,158.85 : x
  2. Step 2: Convert to fraction form
    18,641.85/27,960.44 = 6,158.85/x
  3. Step 3: Cross multiply
    18,641.85x = 27,960.44 × 6,158.85
  4. Step 4: Simplify right side
    18,641.85x = 172,204,212.17
  5. Step 5: Solve for x
    x = 172,204,212.17/18,641.85
  6. Step 6: Final answer
    x = 9,237.51

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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.