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Finding the Fourth Proportional to 18,451.44, 27,683.76 and 8,064

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Solution

The fourth proportional to 18,451.44, 27,683.76 and 8,064 is: 12,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.44 : 27,683.76 = 8,064 : x
  2. Step 2: Convert to fraction form
    18,451.44/27,683.76 = 8,064/x
  3. Step 3: Cross multiply
    18,451.44x = 27,683.76 × 8,064
  4. Step 4: Simplify right side
    18,451.44x = 223,241,840.64
  5. Step 5: Solve for x
    x = 223,241,840.64/18,451.44
  6. Step 6: Final answer
    x = 12,098.88

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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.