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Finding the Fourth Proportional to 11,672.63, 17,509.09 and 3,881.44

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Solution

The fourth proportional to 11,672.63, 17,509.09 and 3,881.44 is: 5,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.63 : 17,509.09 = 3,881.44 : x
  2. Step 2: Convert to fraction form
    11,672.63/17,509.09 = 3,881.44/x
  3. Step 3: Cross multiply
    11,672.63x = 17,509.09 × 3,881.44
  4. Step 4: Simplify right side
    11,672.63x = 67,960,491.99
  5. Step 5: Solve for x
    x = 67,960,491.99/11,672.63
  6. Step 6: Final answer
    x = 5,822.21

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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.