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Finding the Fourth Proportional to 18,608.65, 27,936.66 and 12,062.23

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Solution

The fourth proportional to 18,608.65, 27,936.66 and 12,062.23 is: 18,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.65 : 27,936.66 = 12,062.23 : x
  2. Step 2: Convert to fraction form
    18,608.65/27,936.66 = 12,062.23/x
  3. Step 3: Cross multiply
    18,608.65x = 27,936.66 × 12,062.23
  4. Step 4: Simplify right side
    18,608.65x = 336,978,418.35
  5. Step 5: Solve for x
    x = 336,978,418.35/18,608.65
  6. Step 6: Final answer
    x = 18,108.70

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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.