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Finding the Fourth Proportional to 7,574.90, 11,361.42 and 2,644.12

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Solution

The fourth proportional to 7,574.90, 11,361.42 and 2,644.12 is: 3,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,574.90 : 11,361.42 = 2,644.12 : x
  2. Step 2: Convert to fraction form
    7,574.90/11,361.42 = 2,644.12/x
  3. Step 3: Cross multiply
    7,574.90x = 11,361.42 × 2,644.12
  4. Step 4: Simplify right side
    7,574.90x = 30,040,957.85
  5. Step 5: Solve for x
    x = 30,040,957.85/7,574.90
  6. Step 6: Final answer
    x = 3,965.86

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1.5x scale

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.