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Finding the Fourth Proportional to 18,601.02, 27,881.37 and 6,913.98

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Solution

The fourth proportional to 18,601.02, 27,881.37 and 6,913.98 is: 10,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.02 : 27,881.37 = 6,913.98 : x
  2. Step 2: Convert to fraction form
    18,601.02/27,881.37 = 6,913.98/x
  3. Step 3: Cross multiply
    18,601.02x = 27,881.37 × 6,913.98
  4. Step 4: Simplify right side
    18,601.02x = 192,771,234.55
  5. Step 5: Solve for x
    x = 192,771,234.55/18,601.02
  6. Step 6: Final answer
    x = 10,363.48

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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.