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Finding the Fourth Proportional to 8,773.20, 13,152.30 and 3,839.09

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Solution

The fourth proportional to 8,773.20, 13,152.30 and 3,839.09 is: 5,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.20 : 13,152.30 = 3,839.09 : x
  2. Step 2: Convert to fraction form
    8,773.20/13,152.30 = 3,839.09/x
  3. Step 3: Cross multiply
    8,773.20x = 13,152.30 × 3,839.09
  4. Step 4: Simplify right side
    8,773.20x = 50,492,797.65
  5. Step 5: Solve for x
    x = 50,492,797.65/8,773.20
  6. Step 6: Final answer
    x = 5,755.35

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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.