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Finding the Fourth Proportional to 18,462.62, 27,662.42 and 10,149.60

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Solution

The fourth proportional to 18,462.62, 27,662.42 and 10,149.60 is: 15,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.62 : 27,662.42 = 10,149.60 : x
  2. Step 2: Convert to fraction form
    18,462.62/27,662.42 = 10,149.60/x
  3. Step 3: Cross multiply
    18,462.62x = 27,662.42 × 10,149.60
  4. Step 4: Simplify right side
    18,462.62x = 280,762,498.03
  5. Step 5: Solve for x
    x = 280,762,498.03/18,462.62
  6. Step 6: Final answer
    x = 15,207.08

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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.