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Finding the Fourth Proportional to 5,370.42, 8,057.94 and 2,907

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Solution

The fourth proportional to 5,370.42, 8,057.94 and 2,907 is: 4,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.42 : 8,057.94 = 2,907 : x
  2. Step 2: Convert to fraction form
    5,370.42/8,057.94 = 2,907/x
  3. Step 3: Cross multiply
    5,370.42x = 8,057.94 × 2,907
  4. Step 4: Simplify right side
    5,370.42x = 23,424,431.58
  5. Step 5: Solve for x
    x = 23,424,431.58/5,370.42
  6. Step 6: Final answer
    x = 4,361.75

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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.