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Finding the Fourth Proportional to 8,855.60, 13,274.29 and 3,927.56

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Solution

The fourth proportional to 8,855.60, 13,274.29 and 3,927.56 is: 5,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.60 : 13,274.29 = 3,927.56 : x
  2. Step 2: Convert to fraction form
    8,855.60/13,274.29 = 3,927.56/x
  3. Step 3: Cross multiply
    8,855.60x = 13,274.29 × 3,927.56
  4. Step 4: Simplify right side
    8,855.60x = 52,135,593.80
  5. Step 5: Solve for x
    x = 52,135,593.80/8,855.60
  6. Step 6: Final answer
    x = 5,887.30

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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.