Home / 18,311.50-27,450.96-6,622.12

Finding the Fourth Proportional to 18,311.50, 27,450.96 and 6,622.12

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Solution

The fourth proportional to 18,311.50, 27,450.96 and 6,622.12 is: 9,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.50 : 27,450.96 = 6,622.12 : x
  2. Step 2: Convert to fraction form
    18,311.50/27,450.96 = 6,622.12/x
  3. Step 3: Cross multiply
    18,311.50x = 27,450.96 × 6,622.12
  4. Step 4: Simplify right side
    18,311.50x = 181,783,551.24
  5. Step 5: Solve for x
    x = 181,783,551.24/18,311.50
  6. Step 6: Final answer
    x = 9,927.29

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Double scale
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Similar ratio
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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.