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Finding the Fourth Proportional to 68,991.89, 103,498.57 and 22,249.49

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Solution

The fourth proportional to 68,991.89, 103,498.57 and 22,249.49 is: 33,377.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,991.89 : 103,498.57 = 22,249.49 : x
  2. Step 2: Convert to fraction form
    68,991.89/103,498.57 = 22,249.49/x
  3. Step 3: Cross multiply
    68,991.89x = 103,498.57 × 22,249.49
  4. Step 4: Simplify right side
    68,991.89x = 2,302,789,825.11
  5. Step 5: Solve for x
    x = 2,302,789,825.11/68,991.89
  6. Step 6: Final answer
    x = 33,377.69

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1.5x scale

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.