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Finding the Fourth Proportional to 10,791.76, 14,893.16 and 6,076.56

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Solution

The fourth proportional to 10,791.76, 14,893.16 and 6,076.56 is: 8,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.76 : 14,893.16 = 6,076.56 : x
  2. Step 2: Convert to fraction form
    10,791.76/14,893.16 = 6,076.56/x
  3. Step 3: Cross multiply
    10,791.76x = 14,893.16 × 6,076.56
  4. Step 4: Simplify right side
    10,791.76x = 90,499,180.33
  5. Step 5: Solve for x
    x = 90,499,180.33/10,791.76
  6. Step 6: Final answer
    x = 8,385.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.