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Finding the Fourth Proportional to 8,449.65, 12,672.05 and 3,254.31

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Solution

The fourth proportional to 8,449.65, 12,672.05 and 3,254.31 is: 4,880.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.65 : 12,672.05 = 3,254.31 : x
  2. Step 2: Convert to fraction form
    8,449.65/12,672.05 = 3,254.31/x
  3. Step 3: Cross multiply
    8,449.65x = 12,672.05 × 3,254.31
  4. Step 4: Simplify right side
    8,449.65x = 41,238,762.76
  5. Step 5: Solve for x
    x = 41,238,762.76/8,449.65
  6. Step 6: Final answer
    x = 4,880.53

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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.