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Finding the Fourth Proportional to 11,253.99, 16,881 and 3,860.58

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Solution

The fourth proportional to 11,253.99, 16,881 and 3,860.58 is: 5,790.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.99 : 16,881 = 3,860.58 : x
  2. Step 2: Convert to fraction form
    11,253.99/16,881 = 3,860.58/x
  3. Step 3: Cross multiply
    11,253.99x = 16,881 × 3,860.58
  4. Step 4: Simplify right side
    11,253.99x = 65,170,450.98
  5. Step 5: Solve for x
    x = 65,170,450.98/11,253.99
  6. Step 6: Final answer
    x = 5,790.88

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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.