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Finding the Fourth Proportional to 40,346.60, 60,491.10 and 22,821.80

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Solution

The fourth proportional to 40,346.60, 60,491.10 and 22,821.80 is: 34,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,346.60 : 60,491.10 = 22,821.80 : x
  2. Step 2: Convert to fraction form
    40,346.60/60,491.10 = 22,821.80/x
  3. Step 3: Cross multiply
    40,346.60x = 60,491.10 × 22,821.80
  4. Step 4: Simplify right side
    40,346.60x = 1,380,515,785.98
  5. Step 5: Solve for x
    x = 1,380,515,785.98/40,346.60
  6. Step 6: Final answer
    x = 34,216.41

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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.