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Finding the Fourth Proportional to 18,178, 27,249.99 and 16,554.76

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Solution

The fourth proportional to 18,178, 27,249.99 and 16,554.76 is: 24,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178 : 27,249.99 = 16,554.76 : x
  2. Step 2: Convert to fraction form
    18,178/27,249.99 = 16,554.76/x
  3. Step 3: Cross multiply
    18,178x = 27,249.99 × 16,554.76
  4. Step 4: Simplify right side
    18,178x = 451,117,044.45
  5. Step 5: Solve for x
    x = 451,117,044.45/18,178
  6. Step 6: Final answer
    x = 24,816.65

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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.