Home / 7,472.22-11,213.82-3,579.36

Finding the Fourth Proportional to 7,472.22, 11,213.82 and 3,579.36

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Solution

The fourth proportional to 7,472.22, 11,213.82 and 3,579.36 is: 5,371.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.22 : 11,213.82 = 3,579.36 : x
  2. Step 2: Convert to fraction form
    7,472.22/11,213.82 = 3,579.36/x
  3. Step 3: Cross multiply
    7,472.22x = 11,213.82 × 3,579.36
  4. Step 4: Simplify right side
    7,472.22x = 40,138,298.76
  5. Step 5: Solve for x
    x = 40,138,298.76/7,472.22
  6. Step 6: Final answer
    x = 5,371.67

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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.