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Finding the Fourth Proportional to 5,765.52, 8,649.50 and 1,869.63

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Solution

The fourth proportional to 5,765.52, 8,649.50 and 1,869.63 is: 2,804.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765.52 : 8,649.50 = 1,869.63 : x
  2. Step 2: Convert to fraction form
    5,765.52/8,649.50 = 1,869.63/x
  3. Step 3: Cross multiply
    5,765.52x = 8,649.50 × 1,869.63
  4. Step 4: Simplify right side
    5,765.52x = 16,171,321.44
  5. Step 5: Solve for x
    x = 16,171,321.44/5,765.52
  6. Step 6: Final answer
    x = 2,804.83

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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.