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Finding the Fourth Proportional to 5,644.62, 7,789.58 and 3,160.62

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Solution

The fourth proportional to 5,644.62, 7,789.58 and 3,160.62 is: 4,361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.62 : 7,789.58 = 3,160.62 : x
  2. Step 2: Convert to fraction form
    5,644.62/7,789.58 = 3,160.62/x
  3. Step 3: Cross multiply
    5,644.62x = 7,789.58 × 3,160.62
  4. Step 4: Simplify right side
    5,644.62x = 24,619,902.34
  5. Step 5: Solve for x
    x = 24,619,902.34/5,644.62
  6. Step 6: Final answer
    x = 4,361.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.