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Finding the Fourth Proportional to 18,605.53, 27,906.08 and 6,122.46

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Solution

The fourth proportional to 18,605.53, 27,906.08 and 6,122.46 is: 9,182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.53 : 27,906.08 = 6,122.46 : x
  2. Step 2: Convert to fraction form
    18,605.53/27,906.08 = 6,122.46/x
  3. Step 3: Cross multiply
    18,605.53x = 27,906.08 × 6,122.46
  4. Step 4: Simplify right side
    18,605.53x = 170,853,871.33
  5. Step 5: Solve for x
    x = 170,853,871.33/18,605.53
  6. Step 6: Final answer
    x = 9,182.96

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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.