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Finding the Fourth Proportional to 5,754.30, 8,631.44 and 1,805.41

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Solution

The fourth proportional to 5,754.30, 8,631.44 and 1,805.41 is: 2,708.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,754.30 : 8,631.44 = 1,805.41 : x
  2. Step 2: Convert to fraction form
    5,754.30/8,631.44 = 1,805.41/x
  3. Step 3: Cross multiply
    5,754.30x = 8,631.44 × 1,805.41
  4. Step 4: Simplify right side
    5,754.30x = 15,583,288.09
  5. Step 5: Solve for x
    x = 15,583,288.09/5,754.30
  6. Step 6: Final answer
    x = 2,708.11

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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.