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Finding the Fourth Proportional to 8,755.80, 13,135.32 and 2,834.25

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Solution

The fourth proportional to 8,755.80, 13,135.32 and 2,834.25 is: 4,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.80 : 13,135.32 = 2,834.25 : x
  2. Step 2: Convert to fraction form
    8,755.80/13,135.32 = 2,834.25/x
  3. Step 3: Cross multiply
    8,755.80x = 13,135.32 × 2,834.25
  4. Step 4: Simplify right side
    8,755.80x = 37,228,780.71
  5. Step 5: Solve for x
    x = 37,228,780.71/8,755.80
  6. Step 6: Final answer
    x = 4,251.90

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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.