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Finding the Fourth Proportional to 3,860.37, 5,793.81 and 2,985.23

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Solution

The fourth proportional to 3,860.37, 5,793.81 and 2,985.23 is: 4,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.37 : 5,793.81 = 2,985.23 : x
  2. Step 2: Convert to fraction form
    3,860.37/5,793.81 = 2,985.23/x
  3. Step 3: Cross multiply
    3,860.37x = 5,793.81 × 2,985.23
  4. Step 4: Simplify right side
    3,860.37x = 17,295,855.43
  5. Step 5: Solve for x
    x = 17,295,855.43/3,860.37
  6. Step 6: Final answer
    x = 4,480.36

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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.