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Finding the Fourth Proportional to 11,361.63, 17,042.31 and 3,570.39

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Solution

The fourth proportional to 11,361.63, 17,042.31 and 3,570.39 is: 5,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.63 : 17,042.31 = 3,570.39 : x
  2. Step 2: Convert to fraction form
    11,361.63/17,042.31 = 3,570.39/x
  3. Step 3: Cross multiply
    11,361.63x = 17,042.31 × 3,570.39
  4. Step 4: Simplify right side
    11,361.63x = 60,847,693.20
  5. Step 5: Solve for x
    x = 60,847,693.20/11,361.63
  6. Step 6: Final answer
    x = 5,355.54

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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.