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Finding the Fourth Proportional to 2,361.10, 3,542.05 and 717.81

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Solution

The fourth proportional to 2,361.10, 3,542.05 and 717.81 is: 1,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.10 : 3,542.05 = 717.81 : x
  2. Step 2: Convert to fraction form
    2,361.10/3,542.05 = 717.81/x
  3. Step 3: Cross multiply
    2,361.10x = 3,542.05 × 717.81
  4. Step 4: Simplify right side
    2,361.10x = 2,542,518.91
  5. Step 5: Solve for x
    x = 2,542,518.91/2,361.10
  6. Step 6: Final answer
    x = 1,076.84

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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.