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Finding the Fourth Proportional to 18,609.73, 27,908.69 and 6,126.95

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Solution

The fourth proportional to 18,609.73, 27,908.69 and 6,126.95 is: 9,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.73 : 27,908.69 = 6,126.95 : x
  2. Step 2: Convert to fraction form
    18,609.73/27,908.69 = 6,126.95/x
  3. Step 3: Cross multiply
    18,609.73x = 27,908.69 × 6,126.95
  4. Step 4: Simplify right side
    18,609.73x = 170,995,187.33
  5. Step 5: Solve for x
    x = 170,995,187.33/18,609.73
  6. Step 6: Final answer
    x = 9,188.48

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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.