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Finding the Fourth Proportional to 11,881.54, 17,819.48 and 3,559.32

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Solution

The fourth proportional to 11,881.54, 17,819.48 and 3,559.32 is: 5,338.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.54 : 17,819.48 = 3,559.32 : x
  2. Step 2: Convert to fraction form
    11,881.54/17,819.48 = 3,559.32/x
  3. Step 3: Cross multiply
    11,881.54x = 17,819.48 × 3,559.32
  4. Step 4: Simplify right side
    11,881.54x = 63,425,231.55
  5. Step 5: Solve for x
    x = 63,425,231.55/11,881.54
  6. Step 6: Final answer
    x = 5,338.13

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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.