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Finding the Fourth Proportional to 5,273.76, 7,910.34 and 2,676.64

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Solution

The fourth proportional to 5,273.76, 7,910.34 and 2,676.64 is: 4,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.76 : 7,910.34 = 2,676.64 : x
  2. Step 2: Convert to fraction form
    5,273.76/7,910.34 = 2,676.64/x
  3. Step 3: Cross multiply
    5,273.76x = 7,910.34 × 2,676.64
  4. Step 4: Simplify right side
    5,273.76x = 21,173,132.46
  5. Step 5: Solve for x
    x = 21,173,132.46/5,273.76
  6. Step 6: Final answer
    x = 4,014.81

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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.