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Finding the Fourth Proportional to 8,807.22, 13,211.43 and 3,260.43

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Solution

The fourth proportional to 8,807.22, 13,211.43 and 3,260.43 is: 4,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.22 : 13,211.43 = 3,260.43 : x
  2. Step 2: Convert to fraction form
    8,807.22/13,211.43 = 3,260.43/x
  3. Step 3: Cross multiply
    8,807.22x = 13,211.43 × 3,260.43
  4. Step 4: Simplify right side
    8,807.22x = 43,074,942.71
  5. Step 5: Solve for x
    x = 43,074,942.71/8,807.22
  6. Step 6: Final answer
    x = 4,890.87

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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.