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Finding the Fourth Proportional to 29,651.74, 40,917.66 and 16,220.32

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Solution

The fourth proportional to 29,651.74, 40,917.66 and 16,220.32 is: 22,383.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,651.74 : 40,917.66 = 16,220.32 : x
  2. Step 2: Convert to fraction form
    29,651.74/40,917.66 = 16,220.32/x
  3. Step 3: Cross multiply
    29,651.74x = 40,917.66 × 16,220.32
  4. Step 4: Simplify right side
    29,651.74x = 663,697,375.73
  5. Step 5: Solve for x
    x = 663,697,375.73/29,651.74
  6. Step 6: Final answer
    x = 22,383.09

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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.