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Finding the Fourth Proportional to 11,903.78, 17,854.97 and 3,583.60

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Solution

The fourth proportional to 11,903.78, 17,854.97 and 3,583.60 is: 5,375.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.78 : 17,854.97 = 3,583.60 : x
  2. Step 2: Convert to fraction form
    11,903.78/17,854.97 = 3,583.60/x
  3. Step 3: Cross multiply
    11,903.78x = 17,854.97 × 3,583.60
  4. Step 4: Simplify right side
    11,903.78x = 63,985,007.94
  5. Step 5: Solve for x
    x = 63,985,007.94/11,903.78
  6. Step 6: Final answer
    x = 5,375.18

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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.