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Finding the Fourth Proportional to 18,793.10, 25,934.49 and 10,835.87

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Solution

The fourth proportional to 18,793.10, 25,934.49 and 10,835.87 is: 14,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.10 : 25,934.49 = 10,835.87 : x
  2. Step 2: Convert to fraction form
    18,793.10/25,934.49 = 10,835.87/x
  3. Step 3: Cross multiply
    18,793.10x = 25,934.49 × 10,835.87
  4. Step 4: Simplify right side
    18,793.10x = 281,022,632.48
  5. Step 5: Solve for x
    x = 281,022,632.48/18,793.10
  6. Step 6: Final answer
    x = 14,953.50

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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.