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Finding the Fourth Proportional to 18,793.11, 25,934.18 and 10,409.43

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Solution

The fourth proportional to 18,793.11, 25,934.18 and 10,409.43 is: 14,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.11 : 25,934.18 = 10,409.43 : x
  2. Step 2: Convert to fraction form
    18,793.11/25,934.18 = 10,409.43/x
  3. Step 3: Cross multiply
    18,793.11x = 25,934.18 × 10,409.43
  4. Step 4: Simplify right side
    18,793.11x = 269,959,979.27
  5. Step 5: Solve for x
    x = 269,959,979.27/18,793.11
  6. Step 6: Final answer
    x = 14,364.84

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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.