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Finding the Fourth Proportional to 31,044.62, 46,568.41 and 8,861.21

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Solution

The fourth proportional to 31,044.62, 46,568.41 and 8,861.21 is: 13,292.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,044.62 : 46,568.41 = 8,861.21 : x
  2. Step 2: Convert to fraction form
    31,044.62/46,568.41 = 8,861.21/x
  3. Step 3: Cross multiply
    31,044.62x = 46,568.41 × 8,861.21
  4. Step 4: Simplify right side
    31,044.62x = 412,652,666.88
  5. Step 5: Solve for x
    x = 412,652,666.88/31,044.62
  6. Step 6: Final answer
    x = 13,292.25

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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.