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Finding the Fourth Proportional to 22,250.45, 33,380.67 and 7,458.99

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Solution

The fourth proportional to 22,250.45, 33,380.67 and 7,458.99 is: 11,190.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,250.45 : 33,380.67 = 7,458.99 : x
  2. Step 2: Convert to fraction form
    22,250.45/33,380.67 = 7,458.99/x
  3. Step 3: Cross multiply
    22,250.45x = 33,380.67 × 7,458.99
  4. Step 4: Simplify right side
    22,250.45x = 248,986,083.72
  5. Step 5: Solve for x
    x = 248,986,083.72/22,250.45
  6. Step 6: Final answer
    x = 11,190.16

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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.