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Finding the Fourth Proportional to 5,879.50, 8,820.60 and 2,801.50

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Solution

The fourth proportional to 5,879.50, 8,820.60 and 2,801.50 is: 4,202.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.50 : 8,820.60 = 2,801.50 : x
  2. Step 2: Convert to fraction form
    5,879.50/8,820.60 = 2,801.50/x
  3. Step 3: Cross multiply
    5,879.50x = 8,820.60 × 2,801.50
  4. Step 4: Simplify right side
    5,879.50x = 24,710,910.90
  5. Step 5: Solve for x
    x = 24,710,910.90/5,879.50
  6. Step 6: Final answer
    x = 4,202.89

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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.