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Finding the Fourth Proportional to 73,731, 110,596.91 and 18,327

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Solution

The fourth proportional to 73,731, 110,596.91 and 18,327 is: 27,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,731 : 110,596.91 = 18,327 : x
  2. Step 2: Convert to fraction form
    73,731/110,596.91 = 18,327/x
  3. Step 3: Cross multiply
    73,731x = 110,596.91 × 18,327
  4. Step 4: Simplify right side
    73,731x = 2,026,909,477.94
  5. Step 5: Solve for x
    x = 2,026,909,477.94/73,731
  6. Step 6: Final answer
    x = 27,490.60

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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.