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Finding the Fourth Proportional to 8,644.11, 12,968.73 and 2,800.59

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Solution

The fourth proportional to 8,644.11, 12,968.73 and 2,800.59 is: 4,201.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.11 : 12,968.73 = 2,800.59 : x
  2. Step 2: Convert to fraction form
    8,644.11/12,968.73 = 2,800.59/x
  3. Step 3: Cross multiply
    8,644.11x = 12,968.73 × 2,800.59
  4. Step 4: Simplify right side
    8,644.11x = 36,320,095.55
  5. Step 5: Solve for x
    x = 36,320,095.55/8,644.11
  6. Step 6: Final answer
    x = 4,201.72

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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.