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Finding the Fourth Proportional to 11,859.56, 17,787.29 and 4,068.37

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Solution

The fourth proportional to 11,859.56, 17,787.29 and 4,068.37 is: 6,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.56 : 17,787.29 = 4,068.37 : x
  2. Step 2: Convert to fraction form
    11,859.56/17,787.29 = 4,068.37/x
  3. Step 3: Cross multiply
    11,859.56x = 17,787.29 × 4,068.37
  4. Step 4: Simplify right side
    11,859.56x = 72,365,256.68
  5. Step 5: Solve for x
    x = 72,365,256.68/11,859.56
  6. Step 6: Final answer
    x = 6,101.85

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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.