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Finding the Fourth Proportional to 5,361.17, 7,398.16 and 2,938.41

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Solution

The fourth proportional to 5,361.17, 7,398.16 and 2,938.41 is: 4,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.17 : 7,398.16 = 2,938.41 : x
  2. Step 2: Convert to fraction form
    5,361.17/7,398.16 = 2,938.41/x
  3. Step 3: Cross multiply
    5,361.17x = 7,398.16 × 2,938.41
  4. Step 4: Simplify right side
    5,361.17x = 21,738,819.98
  5. Step 5: Solve for x
    x = 21,738,819.98/5,361.17
  6. Step 6: Final answer
    x = 4,054.87

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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.