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Finding the Fourth Proportional to 20,620.53, 30,932.53 and 6,582.56

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Solution

The fourth proportional to 20,620.53, 30,932.53 and 6,582.56 is: 9,874.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.53 : 30,932.53 = 6,582.56 : x
  2. Step 2: Convert to fraction form
    20,620.53/30,932.53 = 6,582.56/x
  3. Step 3: Cross multiply
    20,620.53x = 30,932.53 × 6,582.56
  4. Step 4: Simplify right side
    20,620.53x = 203,615,237.55
  5. Step 5: Solve for x
    x = 203,615,237.55/20,620.53
  6. Step 6: Final answer
    x = 9,874.39

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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.