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Finding the Fourth Proportional to 18,644.76, 27,958.30 and 6,790.14

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Solution

The fourth proportional to 18,644.76, 27,958.30 and 6,790.14 is: 10,181.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.76 : 27,958.30 = 6,790.14 : x
  2. Step 2: Convert to fraction form
    18,644.76/27,958.30 = 6,790.14/x
  3. Step 3: Cross multiply
    18,644.76x = 27,958.30 × 6,790.14
  4. Step 4: Simplify right side
    18,644.76x = 189,840,754.19
  5. Step 5: Solve for x
    x = 189,840,754.19/18,644.76
  6. Step 6: Final answer
    x = 10,181.99

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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.