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Finding the Fourth Proportional to 21,481.68, 32,222.52 and 5,900.52

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Solution

The fourth proportional to 21,481.68, 32,222.52 and 5,900.52 is: 8,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.68 : 32,222.52 = 5,900.52 : x
  2. Step 2: Convert to fraction form
    21,481.68/32,222.52 = 5,900.52/x
  3. Step 3: Cross multiply
    21,481.68x = 32,222.52 × 5,900.52
  4. Step 4: Simplify right side
    21,481.68x = 190,129,623.71
  5. Step 5: Solve for x
    x = 190,129,623.71/21,481.68
  6. Step 6: Final answer
    x = 8,850.78

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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.