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Finding the Fourth Proportional to 18,609.62, 27,917.22 and 5,460.44

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Solution

The fourth proportional to 18,609.62, 27,917.22 and 5,460.44 is: 8,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.62 : 27,917.22 = 5,460.44 : x
  2. Step 2: Convert to fraction form
    18,609.62/27,917.22 = 5,460.44/x
  3. Step 3: Cross multiply
    18,609.62x = 27,917.22 × 5,460.44
  4. Step 4: Simplify right side
    18,609.62x = 152,440,304.78
  5. Step 5: Solve for x
    x = 152,440,304.78/18,609.62
  6. Step 6: Final answer
    x = 8,191.48

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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.