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Finding the Fourth Proportional to 3,699.54, 5,549.31 and 1,201.23

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Solution

The fourth proportional to 3,699.54, 5,549.31 and 1,201.23 is: 1,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.54 : 5,549.31 = 1,201.23 : x
  2. Step 2: Convert to fraction form
    3,699.54/5,549.31 = 1,201.23/x
  3. Step 3: Cross multiply
    3,699.54x = 5,549.31 × 1,201.23
  4. Step 4: Simplify right side
    3,699.54x = 6,665,997.65
  5. Step 5: Solve for x
    x = 6,665,997.65/3,699.54
  6. Step 6: Final answer
    x = 1,801.85

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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.