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Finding the Fourth Proportional to 18,161, 25,062.18 and 11,548.52

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Solution

The fourth proportional to 18,161, 25,062.18 and 11,548.52 is: 15,936.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161 : 25,062.18 = 11,548.52 : x
  2. Step 2: Convert to fraction form
    18,161/25,062.18 = 11,548.52/x
  3. Step 3: Cross multiply
    18,161x = 25,062.18 × 11,548.52
  4. Step 4: Simplify right side
    18,161x = 289,431,086.97
  5. Step 5: Solve for x
    x = 289,431,086.97/18,161
  6. Step 6: Final answer
    x = 15,936.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.