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Finding the Fourth Proportional to 53,958.82, 80,939.82 and 14,515.96

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Solution

The fourth proportional to 53,958.82, 80,939.82 and 14,515.96 is: 21,774.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,958.82 : 80,939.82 = 14,515.96 : x
  2. Step 2: Convert to fraction form
    53,958.82/80,939.82 = 14,515.96/x
  3. Step 3: Cross multiply
    53,958.82x = 80,939.82 × 14,515.96
  4. Step 4: Simplify right side
    53,958.82x = 1,174,919,189.53
  5. Step 5: Solve for x
    x = 1,174,919,189.53/53,958.82
  6. Step 6: Final answer
    x = 21,774.37

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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.