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Finding the Fourth Proportional to 54,133.20, 81,212.60 and 17,197.20

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Solution

The fourth proportional to 54,133.20, 81,212.60 and 17,197.20 is: 25,799.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,133.20 : 81,212.60 = 17,197.20 : x
  2. Step 2: Convert to fraction form
    54,133.20/81,212.60 = 17,197.20/x
  3. Step 3: Cross multiply
    54,133.20x = 81,212.60 × 17,197.20
  4. Step 4: Simplify right side
    54,133.20x = 1,396,629,324.72
  5. Step 5: Solve for x
    x = 1,396,629,324.72/54,133.20
  6. Step 6: Final answer
    x = 25,799.87

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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.