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Finding the Fourth Proportional to 11,347.21, 17,020.82 and 3,556.63

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Solution

The fourth proportional to 11,347.21, 17,020.82 and 3,556.63 is: 5,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.21 : 17,020.82 = 3,556.63 : x
  2. Step 2: Convert to fraction form
    11,347.21/17,020.82 = 3,556.63/x
  3. Step 3: Cross multiply
    11,347.21x = 17,020.82 × 3,556.63
  4. Step 4: Simplify right side
    11,347.21x = 60,536,759.04
  5. Step 5: Solve for x
    x = 60,536,759.04/11,347.21
  6. Step 6: Final answer
    x = 5,334.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.