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Finding the Fourth Proportional to 31,594.52, 43,620.92 and 19,662.68

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Solution

The fourth proportional to 31,594.52, 43,620.92 and 19,662.68 is: 27,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,594.52 : 43,620.92 = 19,662.68 : x
  2. Step 2: Convert to fraction form
    31,594.52/43,620.92 = 19,662.68/x
  3. Step 3: Cross multiply
    31,594.52x = 43,620.92 × 19,662.68
  4. Step 4: Simplify right side
    31,594.52x = 857,703,874.85
  5. Step 5: Solve for x
    x = 857,703,874.85/31,594.52
  6. Step 6: Final answer
    x = 27,147.24

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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.