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Finding the Fourth Proportional to 8,672.01, 13,010.09 and 2,828.63

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Solution

The fourth proportional to 8,672.01, 13,010.09 and 2,828.63 is: 4,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.01 : 13,010.09 = 2,828.63 : x
  2. Step 2: Convert to fraction form
    8,672.01/13,010.09 = 2,828.63/x
  3. Step 3: Cross multiply
    8,672.01x = 13,010.09 × 2,828.63
  4. Step 4: Simplify right side
    8,672.01x = 36,800,730.88
  5. Step 5: Solve for x
    x = 36,800,730.88/8,672.01
  6. Step 6: Final answer
    x = 4,243.62

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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.