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Finding the Fourth Proportional to 8,979.22, 13,481.25 and 6,199.03

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Solution

The fourth proportional to 8,979.22, 13,481.25 and 6,199.03 is: 9,307.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.22 : 13,481.25 = 6,199.03 : x
  2. Step 2: Convert to fraction form
    8,979.22/13,481.25 = 6,199.03/x
  3. Step 3: Cross multiply
    8,979.22x = 13,481.25 × 6,199.03
  4. Step 4: Simplify right side
    8,979.22x = 83,570,639.48
  5. Step 5: Solve for x
    x = 83,570,639.48/8,979.22
  6. Step 6: Final answer
    x = 9,307.12

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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.