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Finding the Fourth Proportional to 18,164.40, 27,230.40 and 7,067.40

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Solution

The fourth proportional to 18,164.40, 27,230.40 and 7,067.40 is: 10,594.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.40 : 27,230.40 = 7,067.40 : x
  2. Step 2: Convert to fraction form
    18,164.40/27,230.40 = 7,067.40/x
  3. Step 3: Cross multiply
    18,164.40x = 27,230.40 × 7,067.40
  4. Step 4: Simplify right side
    18,164.40x = 192,448,128.96
  5. Step 5: Solve for x
    x = 192,448,128.96/18,164.40
  6. Step 6: Final answer
    x = 10,594.80

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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.