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Finding the Fourth Proportional to 20,652.87, 30,980.48 and 5,860.62

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Solution

The fourth proportional to 20,652.87, 30,980.48 and 5,860.62 is: 8,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.87 : 30,980.48 = 5,860.62 : x
  2. Step 2: Convert to fraction form
    20,652.87/30,980.48 = 5,860.62/x
  3. Step 3: Cross multiply
    20,652.87x = 30,980.48 × 5,860.62
  4. Step 4: Simplify right side
    20,652.87x = 181,564,791.39
  5. Step 5: Solve for x
    x = 181,564,791.39/20,652.87
  6. Step 6: Final answer
    x = 8,791.26

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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.