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Finding the Fourth Proportional to 18,423.96, 27,650.52 and 8,043

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Solution

The fourth proportional to 18,423.96, 27,650.52 and 8,043 is: 12,070.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.96 : 27,650.52 = 8,043 : x
  2. Step 2: Convert to fraction form
    18,423.96/27,650.52 = 8,043/x
  3. Step 3: Cross multiply
    18,423.96x = 27,650.52 × 8,043
  4. Step 4: Simplify right side
    18,423.96x = 222,393,132.36
  5. Step 5: Solve for x
    x = 222,393,132.36/18,423.96
  6. Step 6: Final answer
    x = 12,070.86

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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.