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Finding the Fourth Proportional to 17,860.86, 26,795.04 and 5,381.80

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Solution

The fourth proportional to 17,860.86, 26,795.04 and 5,381.80 is: 8,073.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,860.86 : 26,795.04 = 5,381.80 : x
  2. Step 2: Convert to fraction form
    17,860.86/26,795.04 = 5,381.80/x
  3. Step 3: Cross multiply
    17,860.86x = 26,795.04 × 5,381.80
  4. Step 4: Simplify right side
    17,860.86x = 144,205,546.27
  5. Step 5: Solve for x
    x = 144,205,546.27/17,860.86
  6. Step 6: Final answer
    x = 8,073.83

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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.