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Finding the Fourth Proportional to 18,793.26, 25,935.52 and 10,409.76

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Solution

The fourth proportional to 18,793.26, 25,935.52 and 10,409.76 is: 14,365.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.26 : 25,935.52 = 10,409.76 : x
  2. Step 2: Convert to fraction form
    18,793.26/25,935.52 = 10,409.76/x
  3. Step 3: Cross multiply
    18,793.26x = 25,935.52 × 10,409.76
  4. Step 4: Simplify right side
    18,793.26x = 269,982,538.68
  5. Step 5: Solve for x
    x = 269,982,538.68/18,793.26
  6. Step 6: Final answer
    x = 14,365.92

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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.