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Finding the Fourth Proportional to 3,575.92, 5,361.90 and 1,234.66

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Solution

The fourth proportional to 3,575.92, 5,361.90 and 1,234.66 is: 1,851.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.92 : 5,361.90 = 1,234.66 : x
  2. Step 2: Convert to fraction form
    3,575.92/5,361.90 = 1,234.66/x
  3. Step 3: Cross multiply
    3,575.92x = 5,361.90 × 1,234.66
  4. Step 4: Simplify right side
    3,575.92x = 6,620,123.45
  5. Step 5: Solve for x
    x = 6,620,123.45/3,575.92
  6. Step 6: Final answer
    x = 1,851.31

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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.