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Finding the Fourth Proportional to 19,797.39, 29,698.05 and 5,757.54

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Solution

The fourth proportional to 19,797.39, 29,698.05 and 5,757.54 is: 8,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,797.39 : 29,698.05 = 5,757.54 : x
  2. Step 2: Convert to fraction form
    19,797.39/29,698.05 = 5,757.54/x
  3. Step 3: Cross multiply
    19,797.39x = 29,698.05 × 5,757.54
  4. Step 4: Simplify right side
    19,797.39x = 170,987,710.80
  5. Step 5: Solve for x
    x = 170,987,710.80/19,797.39
  6. Step 6: Final answer
    x = 8,636.88

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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.