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Finding the Fourth Proportional to 18,902.76, 26,084.70 and 10,944.42

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Solution

The fourth proportional to 18,902.76, 26,084.70 and 10,944.42 is: 15,102.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.76 : 26,084.70 = 10,944.42 : x
  2. Step 2: Convert to fraction form
    18,902.76/26,084.70 = 10,944.42/x
  3. Step 3: Cross multiply
    18,902.76x = 26,084.70 × 10,944.42
  4. Step 4: Simplify right side
    18,902.76x = 285,481,912.37
  5. Step 5: Solve for x
    x = 285,481,912.37/18,902.76
  6. Step 6: Final answer
    x = 15,102.66

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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.