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Finding the Fourth Proportional to 11,858.58, 17,787.87 and 3,093.48

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Solution

The fourth proportional to 11,858.58, 17,787.87 and 3,093.48 is: 4,640.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.58 : 17,787.87 = 3,093.48 : x
  2. Step 2: Convert to fraction form
    11,858.58/17,787.87 = 3,093.48/x
  3. Step 3: Cross multiply
    11,858.58x = 17,787.87 × 3,093.48
  4. Step 4: Simplify right side
    11,858.58x = 55,026,420.09
  5. Step 5: Solve for x
    x = 55,026,420.09/11,858.58
  6. Step 6: Final answer
    x = 4,640.22

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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.