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Finding the Fourth Proportional to 3,266.93, 4,900.63 and 1,621.82

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Solution

The fourth proportional to 3,266.93, 4,900.63 and 1,621.82 is: 2,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.93 : 4,900.63 = 1,621.82 : x
  2. Step 2: Convert to fraction form
    3,266.93/4,900.63 = 1,621.82/x
  3. Step 3: Cross multiply
    3,266.93x = 4,900.63 × 1,621.82
  4. Step 4: Simplify right side
    3,266.93x = 7,947,939.75
  5. Step 5: Solve for x
    x = 7,947,939.75/3,266.93
  6. Step 6: Final answer
    x = 2,432.85

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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.