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Finding the Fourth Proportional to 3,321.63, 4,973.22 and 1,673.18

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Solution

The fourth proportional to 3,321.63, 4,973.22 and 1,673.18 is: 2,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.63 : 4,973.22 = 1,673.18 : x
  2. Step 2: Convert to fraction form
    3,321.63/4,973.22 = 1,673.18/x
  3. Step 3: Cross multiply
    3,321.63x = 4,973.22 × 1,673.18
  4. Step 4: Simplify right side
    3,321.63x = 8,321,092.24
  5. Step 5: Solve for x
    x = 8,321,092.24/3,321.63
  6. Step 6: Final answer
    x = 2,505.12

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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.