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Finding the Fourth Proportional to 18,906.72, 26,092.56 and 10,951.20

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Solution

The fourth proportional to 18,906.72, 26,092.56 and 10,951.20 is: 15,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,906.72 : 26,092.56 = 10,951.20 : x
  2. Step 2: Convert to fraction form
    18,906.72/26,092.56 = 10,951.20/x
  3. Step 3: Cross multiply
    18,906.72x = 26,092.56 × 10,951.20
  4. Step 4: Simplify right side
    18,906.72x = 285,744,843.07
  5. Step 5: Solve for x
    x = 285,744,843.07/18,906.72
  6. Step 6: Final answer
    x = 15,113.40

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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.