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Finding the Fourth Proportional to 3,344.18, 5,015.88 and 879.27

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Solution

The fourth proportional to 3,344.18, 5,015.88 and 879.27 is: 1,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,344.18 : 5,015.88 = 879.27 : x
  2. Step 2: Convert to fraction form
    3,344.18/5,015.88 = 879.27/x
  3. Step 3: Cross multiply
    3,344.18x = 5,015.88 × 879.27
  4. Step 4: Simplify right side
    3,344.18x = 4,410,312.81
  5. Step 5: Solve for x
    x = 4,410,312.81/3,344.18
  6. Step 6: Final answer
    x = 1,318.80

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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.