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Finding the Fourth Proportional to 18,563.54, 27,796.05 and 14,520.62

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Solution

The fourth proportional to 18,563.54, 27,796.05 and 14,520.62 is: 21,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.54 : 27,796.05 = 14,520.62 : x
  2. Step 2: Convert to fraction form
    18,563.54/27,796.05 = 14,520.62/x
  3. Step 3: Cross multiply
    18,563.54x = 27,796.05 × 14,520.62
  4. Step 4: Simplify right side
    18,563.54x = 403,615,879.55
  5. Step 5: Solve for x
    x = 403,615,879.55/18,563.54
  6. Step 6: Final answer
    x = 21,742.40

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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.