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Finding the Fourth Proportional to 8,859.88, 13,278.22 and 4,474.96

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Solution

The fourth proportional to 8,859.88, 13,278.22 and 4,474.96 is: 6,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.88 : 13,278.22 = 4,474.96 : x
  2. Step 2: Convert to fraction form
    8,859.88/13,278.22 = 4,474.96/x
  3. Step 3: Cross multiply
    8,859.88x = 13,278.22 × 4,474.96
  4. Step 4: Simplify right side
    8,859.88x = 59,419,503.37
  5. Step 5: Solve for x
    x = 59,419,503.37/8,859.88
  6. Step 6: Final answer
    x = 6,706.58

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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.