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Finding the Fourth Proportional to 18,662.28, 27,992.46 and 6,974.58

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Solution

The fourth proportional to 18,662.28, 27,992.46 and 6,974.58 is: 10,461.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.28 : 27,992.46 = 6,974.58 : x
  2. Step 2: Convert to fraction form
    18,662.28/27,992.46 = 6,974.58/x
  3. Step 3: Cross multiply
    18,662.28x = 27,992.46 × 6,974.58
  4. Step 4: Simplify right side
    18,662.28x = 195,235,651.67
  5. Step 5: Solve for x
    x = 195,235,651.67/18,662.28
  6. Step 6: Final answer
    x = 10,461.51

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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.