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Finding the Fourth Proportional to 43,958.78, 65,941.20 and 17,663.54

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Solution

The fourth proportional to 43,958.78, 65,941.20 and 17,663.54 is: 26,496.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,958.78 : 65,941.20 = 17,663.54 : x
  2. Step 2: Convert to fraction form
    43,958.78/65,941.20 = 17,663.54/x
  3. Step 3: Cross multiply
    43,958.78x = 65,941.20 × 17,663.54
  4. Step 4: Simplify right side
    43,958.78x = 1,164,755,023.85
  5. Step 5: Solve for x
    x = 1,164,755,023.85/43,958.78
  6. Step 6: Final answer
    x = 26,496.53

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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.