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Finding the Fourth Proportional to 18,793.26, 25,938.02 and 11,240.42

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Solution

The fourth proportional to 18,793.26, 25,938.02 and 11,240.42 is: 15,513.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.26 : 25,938.02 = 11,240.42 : x
  2. Step 2: Convert to fraction form
    18,793.26/25,938.02 = 11,240.42/x
  3. Step 3: Cross multiply
    18,793.26x = 25,938.02 × 11,240.42
  4. Step 4: Simplify right side
    18,793.26x = 291,554,137.18
  5. Step 5: Solve for x
    x = 291,554,137.18/18,793.26
  6. Step 6: Final answer
    x = 15,513.76

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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.