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Finding the Fourth Proportional to 25,986.31, 35,861.11 and 14,049.65

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Solution

The fourth proportional to 25,986.31, 35,861.11 and 14,049.65 is: 19,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,986.31 : 35,861.11 = 14,049.65 : x
  2. Step 2: Convert to fraction form
    25,986.31/35,861.11 = 14,049.65/x
  3. Step 3: Cross multiply
    25,986.31x = 35,861.11 × 14,049.65
  4. Step 4: Simplify right side
    25,986.31x = 503,835,794.56
  5. Step 5: Solve for x
    x = 503,835,794.56/25,986.31
  6. Step 6: Final answer
    x = 19,388.51

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Why These Related Problems?

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