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Finding the Fourth Proportional to 45,891.22, 68,738.55 and 22,468.90

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Solution

The fourth proportional to 45,891.22, 68,738.55 and 22,468.90 is: 33,655.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,891.22 : 68,738.55 = 22,468.90 : x
  2. Step 2: Convert to fraction form
    45,891.22/68,738.55 = 22,468.90/x
  3. Step 3: Cross multiply
    45,891.22x = 68,738.55 × 22,468.90
  4. Step 4: Simplify right side
    45,891.22x = 1,544,479,606.10
  5. Step 5: Solve for x
    x = 1,544,479,606.10/45,891.22
  6. Step 6: Final answer
    x = 33,655.23

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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.