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Finding the Fourth Proportional to 3,661.74, 5,487.48 and 2,019.06

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Solution

The fourth proportional to 3,661.74, 5,487.48 and 2,019.06 is: 3,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.74 : 5,487.48 = 2,019.06 : x
  2. Step 2: Convert to fraction form
    3,661.74/5,487.48 = 2,019.06/x
  3. Step 3: Cross multiply
    3,661.74x = 5,487.48 × 2,019.06
  4. Step 4: Simplify right side
    3,661.74x = 11,079,551.37
  5. Step 5: Solve for x
    x = 11,079,551.37/3,661.74
  6. Step 6: Final answer
    x = 3,025.76

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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.