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Finding the Fourth Proportional to 29,403.58, 40,561.41 and 18,629.44

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Solution

The fourth proportional to 29,403.58, 40,561.41 and 18,629.44 is: 25,698.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,403.58 : 40,561.41 = 18,629.44 : x
  2. Step 2: Convert to fraction form
    29,403.58/40,561.41 = 18,629.44/x
  3. Step 3: Cross multiply
    29,403.58x = 40,561.41 × 18,629.44
  4. Step 4: Simplify right side
    29,403.58x = 755,636,353.91
  5. Step 5: Solve for x
    x = 755,636,353.91/29,403.58
  6. Step 6: Final answer
    x = 25,698.79

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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.