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Finding the Fourth Proportional to 18,442.98, 27,664.66 and 5,295.32

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Solution

The fourth proportional to 18,442.98, 27,664.66 and 5,295.32 is: 7,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.98 : 27,664.66 = 5,295.32 : x
  2. Step 2: Convert to fraction form
    18,442.98/27,664.66 = 5,295.32/x
  3. Step 3: Cross multiply
    18,442.98x = 27,664.66 × 5,295.32
  4. Step 4: Simplify right side
    18,442.98x = 146,493,227.39
  5. Step 5: Solve for x
    x = 146,493,227.39/18,442.98
  6. Step 6: Final answer
    x = 7,943.03

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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.