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Finding the Fourth Proportional to 29,639.82, 40,917.81 and 22,910.22

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Solution

The fourth proportional to 29,639.82, 40,917.81 and 22,910.22 is: 31,627.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,639.82 : 40,917.81 = 22,910.22 : x
  2. Step 2: Convert to fraction form
    29,639.82/40,917.81 = 22,910.22/x
  3. Step 3: Cross multiply
    29,639.82x = 40,917.81 × 22,910.22
  4. Step 4: Simplify right side
    29,639.82x = 937,436,029.02
  5. Step 5: Solve for x
    x = 937,436,029.02/29,639.82
  6. Step 6: Final answer
    x = 31,627.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.