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Finding the Fourth Proportional to 6,616.20, 9,924.30 and 5,989.80

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Solution

The fourth proportional to 6,616.20, 9,924.30 and 5,989.80 is: 8,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.20 : 9,924.30 = 5,989.80 : x
  2. Step 2: Convert to fraction form
    6,616.20/9,924.30 = 5,989.80/x
  3. Step 3: Cross multiply
    6,616.20x = 9,924.30 × 5,989.80
  4. Step 4: Simplify right side
    6,616.20x = 59,444,572.14
  5. Step 5: Solve for x
    x = 59,444,572.14/6,616.20
  6. Step 6: Final answer
    x = 8,984.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.