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Finding the Fourth Proportional to 11,811.55, 17,717.73 and 6,257.38

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Solution

The fourth proportional to 11,811.55, 17,717.73 and 6,257.38 is: 9,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.55 : 17,717.73 = 6,257.38 : x
  2. Step 2: Convert to fraction form
    11,811.55/17,717.73 = 6,257.38/x
  3. Step 3: Cross multiply
    11,811.55x = 17,717.73 × 6,257.38
  4. Step 4: Simplify right side
    11,811.55x = 110,866,509.41
  5. Step 5: Solve for x
    x = 110,866,509.41/11,811.55
  6. Step 6: Final answer
    x = 9,386.28

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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.