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Finding the Fourth Proportional to 38,651.86, 57,975.90 and 22,650.31

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Solution

The fourth proportional to 38,651.86, 57,975.90 and 22,650.31 is: 33,974.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,651.86 : 57,975.90 = 22,650.31 : x
  2. Step 2: Convert to fraction form
    38,651.86/57,975.90 = 22,650.31/x
  3. Step 3: Cross multiply
    38,651.86x = 57,975.90 × 22,650.31
  4. Step 4: Simplify right side
    38,651.86x = 1,313,172,107.53
  5. Step 5: Solve for x
    x = 1,313,172,107.53/38,651.86
  6. Step 6: Final answer
    x = 33,974.36

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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.