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Finding the Fourth Proportional to 5,355.87, 7,391.04 and 2,998.02

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Solution

The fourth proportional to 5,355.87, 7,391.04 and 2,998.02 is: 4,137.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.87 : 7,391.04 = 2,998.02 : x
  2. Step 2: Convert to fraction form
    5,355.87/7,391.04 = 2,998.02/x
  3. Step 3: Cross multiply
    5,355.87x = 7,391.04 × 2,998.02
  4. Step 4: Simplify right side
    5,355.87x = 22,158,485.74
  5. Step 5: Solve for x
    x = 22,158,485.74/5,355.87
  6. Step 6: Final answer
    x = 4,137.23

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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.