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Finding the Fourth Proportional to 11,888.21, 17,832.29 and 3,568.21

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Solution

The fourth proportional to 11,888.21, 17,832.29 and 3,568.21 is: 5,352.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.21 : 17,832.29 = 3,568.21 : x
  2. Step 2: Convert to fraction form
    11,888.21/17,832.29 = 3,568.21/x
  3. Step 3: Cross multiply
    11,888.21x = 17,832.29 × 3,568.21
  4. Step 4: Simplify right side
    11,888.21x = 63,629,355.50
  5. Step 5: Solve for x
    x = 63,629,355.50/11,888.21
  6. Step 6: Final answer
    x = 5,352.31

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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.