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Finding the Fourth Proportional to 23,791.20, 35,686.80 and 20,032.80

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Solution

The fourth proportional to 23,791.20, 35,686.80 and 20,032.80 is: 30,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,791.20 : 35,686.80 = 20,032.80 : x
  2. Step 2: Convert to fraction form
    23,791.20/35,686.80 = 20,032.80/x
  3. Step 3: Cross multiply
    23,791.20x = 35,686.80 × 20,032.80
  4. Step 4: Simplify right side
    23,791.20x = 714,906,527.04
  5. Step 5: Solve for x
    x = 714,906,527.04/23,791.20
  6. Step 6: Final answer
    x = 30,049.20

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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.