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Finding the Fourth Proportional to 8,664.67, 13,005.12 and 4,507.62

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Solution

The fourth proportional to 8,664.67, 13,005.12 and 4,507.62 is: 6,765.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.67 : 13,005.12 = 4,507.62 : x
  2. Step 2: Convert to fraction form
    8,664.67/13,005.12 = 4,507.62/x
  3. Step 3: Cross multiply
    8,664.67x = 13,005.12 × 4,507.62
  4. Step 4: Simplify right side
    8,664.67x = 58,622,107.15
  5. Step 5: Solve for x
    x = 58,622,107.15/8,664.67
  6. Step 6: Final answer
    x = 6,765.65

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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.