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Finding the Fourth Proportional to 29,621.80, 44,324.70 and 18,533.80

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Solution

The fourth proportional to 29,621.80, 44,324.70 and 18,533.80 is: 27,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,621.80 : 44,324.70 = 18,533.80 : x
  2. Step 2: Convert to fraction form
    29,621.80/44,324.70 = 18,533.80/x
  3. Step 3: Cross multiply
    29,621.80x = 44,324.70 × 18,533.80
  4. Step 4: Simplify right side
    29,621.80x = 821,505,124.86
  5. Step 5: Solve for x
    x = 821,505,124.86/29,621.80
  6. Step 6: Final answer
    x = 27,733.13

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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.