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Finding the Fourth Proportional to 3,579.66, 5,361.73 and 2,956.37

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Solution

The fourth proportional to 3,579.66, 5,361.73 and 2,956.37 is: 4,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.66 : 5,361.73 = 2,956.37 : x
  2. Step 2: Convert to fraction form
    3,579.66/5,361.73 = 2,956.37/x
  3. Step 3: Cross multiply
    3,579.66x = 5,361.73 × 2,956.37
  4. Step 4: Simplify right side
    3,579.66x = 15,851,223.52
  5. Step 5: Solve for x
    x = 15,851,223.52/3,579.66
  6. Step 6: Final answer
    x = 4,428.14

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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.