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Finding the Fourth Proportional to 25,286.80, 37,843.80 and 22,176.40

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Solution

The fourth proportional to 25,286.80, 37,843.80 and 22,176.40 is: 33,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.80 : 37,843.80 = 22,176.40 : x
  2. Step 2: Convert to fraction form
    25,286.80/37,843.80 = 22,176.40/x
  3. Step 3: Cross multiply
    25,286.80x = 37,843.80 × 22,176.40
  4. Step 4: Simplify right side
    25,286.80x = 839,239,246.32
  5. Step 5: Solve for x
    x = 839,239,246.32/25,286.80
  6. Step 6: Final answer
    x = 33,188.83

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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.