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Finding the Fourth Proportional to 7,481.01, 11,221.48 and 1,933.88

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Solution

The fourth proportional to 7,481.01, 11,221.48 and 1,933.88 is: 2,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.01 : 11,221.48 = 1,933.88 : x
  2. Step 2: Convert to fraction form
    7,481.01/11,221.48 = 1,933.88/x
  3. Step 3: Cross multiply
    7,481.01x = 11,221.48 × 1,933.88
  4. Step 4: Simplify right side
    7,481.01x = 21,700,995.74
  5. Step 5: Solve for x
    x = 21,700,995.74/7,481.01
  6. Step 6: Final answer
    x = 2,900.81

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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.