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Finding the Fourth Proportional to 17,164.80, 25,747.20 and 7,304.40

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Solution

The fourth proportional to 17,164.80, 25,747.20 and 7,304.40 is: 10,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,164.80 : 25,747.20 = 7,304.40 : x
  2. Step 2: Convert to fraction form
    17,164.80/25,747.20 = 7,304.40/x
  3. Step 3: Cross multiply
    17,164.80x = 25,747.20 × 7,304.40
  4. Step 4: Simplify right side
    17,164.80x = 188,067,847.68
  5. Step 5: Solve for x
    x = 188,067,847.68/17,164.80
  6. Step 6: Final answer
    x = 10,956.60

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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.