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Finding the Fourth Proportional to 53,991.34, 80,992.41 and 16,550.98

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Solution

The fourth proportional to 53,991.34, 80,992.41 and 16,550.98 is: 24,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,991.34 : 80,992.41 = 16,550.98 : x
  2. Step 2: Convert to fraction form
    53,991.34/80,992.41 = 16,550.98/x
  3. Step 3: Cross multiply
    53,991.34x = 80,992.41 × 16,550.98
  4. Step 4: Simplify right side
    53,991.34x = 1,340,503,758.06
  5. Step 5: Solve for x
    x = 1,340,503,758.06/53,991.34
  6. Step 6: Final answer
    x = 24,828.13

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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.