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Finding the Fourth Proportional to 18,325.56, 27,488.10 and 4,474.68

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Solution

The fourth proportional to 18,325.56, 27,488.10 and 4,474.68 is: 6,711.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.56 : 27,488.10 = 4,474.68 : x
  2. Step 2: Convert to fraction form
    18,325.56/27,488.10 = 4,474.68/x
  3. Step 3: Cross multiply
    18,325.56x = 27,488.10 × 4,474.68
  4. Step 4: Simplify right side
    18,325.56x = 123,000,451.31
  5. Step 5: Solve for x
    x = 123,000,451.31/18,325.56
  6. Step 6: Final answer
    x = 6,711.96

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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.