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Finding the Fourth Proportional to 18,343.91, 27,515.90 and 5,864.94

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Solution

The fourth proportional to 18,343.91, 27,515.90 and 5,864.94 is: 8,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.91 : 27,515.90 = 5,864.94 : x
  2. Step 2: Convert to fraction form
    18,343.91/27,515.90 = 5,864.94/x
  3. Step 3: Cross multiply
    18,343.91x = 27,515.90 × 5,864.94
  4. Step 4: Simplify right side
    18,343.91x = 161,379,102.55
  5. Step 5: Solve for x
    x = 161,379,102.55/18,343.91
  6. Step 6: Final answer
    x = 8,797.42

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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.