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Finding the Fourth Proportional to 17,793.81, 26,693.82 and 7,932.87

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Solution

The fourth proportional to 17,793.81, 26,693.82 and 7,932.87 is: 11,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,793.81 : 26,693.82 = 7,932.87 : x
  2. Step 2: Convert to fraction form
    17,793.81/26,693.82 = 7,932.87/x
  3. Step 3: Cross multiply
    17,793.81x = 26,693.82 × 7,932.87
  4. Step 4: Simplify right side
    17,793.81x = 211,758,603.86
  5. Step 5: Solve for x
    x = 211,758,603.86/17,793.81
  6. Step 6: Final answer
    x = 11,900.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.