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Finding the Fourth Proportional to 2,737.42, 4,106.22 and 789.64

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Solution

The fourth proportional to 2,737.42, 4,106.22 and 789.64 is: 1,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,737.42 : 4,106.22 = 789.64 : x
  2. Step 2: Convert to fraction form
    2,737.42/4,106.22 = 789.64/x
  3. Step 3: Cross multiply
    2,737.42x = 4,106.22 × 789.64
  4. Step 4: Simplify right side
    2,737.42x = 3,242,435.56
  5. Step 5: Solve for x
    x = 3,242,435.56/2,737.42
  6. Step 6: Final answer
    x = 1,184.49

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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.