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Finding the Fourth Proportional to 10,961.31, 15,122.97 and 6,180.65

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Solution

The fourth proportional to 10,961.31, 15,122.97 and 6,180.65 is: 8,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.31 : 15,122.97 = 6,180.65 : x
  2. Step 2: Convert to fraction form
    10,961.31/15,122.97 = 6,180.65/x
  3. Step 3: Cross multiply
    10,961.31x = 15,122.97 × 6,180.65
  4. Step 4: Simplify right side
    10,961.31x = 93,469,784.53
  5. Step 5: Solve for x
    x = 93,469,784.53/10,961.31
  6. Step 6: Final answer
    x = 8,527.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.