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Finding the Fourth Proportional to 18,793.40, 25,933.77 and 10,293.82

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Solution

The fourth proportional to 18,793.40, 25,933.77 and 10,293.82 is: 14,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.40 : 25,933.77 = 10,293.82 : x
  2. Step 2: Convert to fraction form
    18,793.40/25,933.77 = 10,293.82/x
  3. Step 3: Cross multiply
    18,793.40x = 25,933.77 × 10,293.82
  4. Step 4: Simplify right side
    18,793.40x = 266,957,495.47
  5. Step 5: Solve for x
    x = 266,957,495.47/18,793.40
  6. Step 6: Final answer
    x = 14,204.86

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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.