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Finding the Fourth Proportional to 12,027.53, 18,044.03 and 5,455.60

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Solution

The fourth proportional to 12,027.53, 18,044.03 and 5,455.60 is: 8,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,027.53 : 18,044.03 = 5,455.60 : x
  2. Step 2: Convert to fraction form
    12,027.53/18,044.03 = 5,455.60/x
  3. Step 3: Cross multiply
    12,027.53x = 18,044.03 × 5,455.60
  4. Step 4: Simplify right side
    12,027.53x = 98,440,978.60
  5. Step 5: Solve for x
    x = 98,440,978.60/12,027.53
  6. Step 6: Final answer
    x = 8,184.64

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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.