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Finding the Fourth Proportional to 8,917.32, 13,379.01 and 3,372.24

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Solution

The fourth proportional to 8,917.32, 13,379.01 and 3,372.24 is: 5,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.32 : 13,379.01 = 3,372.24 : x
  2. Step 2: Convert to fraction form
    8,917.32/13,379.01 = 3,372.24/x
  3. Step 3: Cross multiply
    8,917.32x = 13,379.01 × 3,372.24
  4. Step 4: Simplify right side
    8,917.32x = 45,117,232.68
  5. Step 5: Solve for x
    x = 45,117,232.68/8,917.32
  6. Step 6: Final answer
    x = 5,059.51

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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.