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Finding the Fourth Proportional to 10,910.60, 16,365.90 and 2,702.60

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Solution

The fourth proportional to 10,910.60, 16,365.90 and 2,702.60 is: 4,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,910.60 : 16,365.90 = 2,702.60 : x
  2. Step 2: Convert to fraction form
    10,910.60/16,365.90 = 2,702.60/x
  3. Step 3: Cross multiply
    10,910.60x = 16,365.90 × 2,702.60
  4. Step 4: Simplify right side
    10,910.60x = 44,230,481.34
  5. Step 5: Solve for x
    x = 44,230,481.34/10,910.60
  6. Step 6: Final answer
    x = 4,053.90

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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.