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Finding the Fourth Proportional to 6,395.04, 9,579.80 and 5,081.02

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Solution

The fourth proportional to 6,395.04, 9,579.80 and 5,081.02 is: 7,611.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,395.04 : 9,579.80 = 5,081.02 : x
  2. Step 2: Convert to fraction form
    6,395.04/9,579.80 = 5,081.02/x
  3. Step 3: Cross multiply
    6,395.04x = 9,579.80 × 5,081.02
  4. Step 4: Simplify right side
    6,395.04x = 48,675,155.40
  5. Step 5: Solve for x
    x = 48,675,155.40/6,395.04
  6. Step 6: Final answer
    x = 7,611.39

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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.