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Finding the Fourth Proportional to 8,323.65, 12,485.17 and 2,480.11

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Solution

The fourth proportional to 8,323.65, 12,485.17 and 2,480.11 is: 3,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323.65 : 12,485.17 = 2,480.11 : x
  2. Step 2: Convert to fraction form
    8,323.65/12,485.17 = 2,480.11/x
  3. Step 3: Cross multiply
    8,323.65x = 12,485.17 × 2,480.11
  4. Step 4: Simplify right side
    8,323.65x = 30,964,594.97
  5. Step 5: Solve for x
    x = 30,964,594.97/8,323.65
  6. Step 6: Final answer
    x = 3,720.07

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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.