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Finding the Fourth Proportional to 17,861.72, 26,797.04 and 5,381.44

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Solution

The fourth proportional to 17,861.72, 26,797.04 and 5,381.44 is: 8,073.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,861.72 : 26,797.04 = 5,381.44 : x
  2. Step 2: Convert to fraction form
    17,861.72/26,797.04 = 5,381.44/x
  3. Step 3: Cross multiply
    17,861.72x = 26,797.04 × 5,381.44
  4. Step 4: Simplify right side
    17,861.72x = 144,206,662.94
  5. Step 5: Solve for x
    x = 144,206,662.94/17,861.72
  6. Step 6: Final answer
    x = 8,073.50

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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.