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Finding the Fourth Proportional to 3,993.84, 5,989.74 and 2,607.93

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Solution

The fourth proportional to 3,993.84, 5,989.74 and 2,607.93 is: 3,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.84 : 5,989.74 = 2,607.93 : x
  2. Step 2: Convert to fraction form
    3,993.84/5,989.74 = 2,607.93/x
  3. Step 3: Cross multiply
    3,993.84x = 5,989.74 × 2,607.93
  4. Step 4: Simplify right side
    3,993.84x = 15,620,822.64
  5. Step 5: Solve for x
    x = 15,620,822.64/3,993.84
  6. Step 6: Final answer
    x = 3,911.23

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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.