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Finding the Fourth Proportional to 3,573.76, 5,361.36 and 1,108.48

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Solution

The fourth proportional to 3,573.76, 5,361.36 and 1,108.48 is: 1,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.76 : 5,361.36 = 1,108.48 : x
  2. Step 2: Convert to fraction form
    3,573.76/5,361.36 = 1,108.48/x
  3. Step 3: Cross multiply
    3,573.76x = 5,361.36 × 1,108.48
  4. Step 4: Simplify right side
    3,573.76x = 5,942,960.33
  5. Step 5: Solve for x
    x = 5,942,960.33/3,573.76
  6. Step 6: Final answer
    x = 1,662.94

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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.