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Finding the Fourth Proportional to 43,960.80, 65,932.80 and 14,369.76

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Solution

The fourth proportional to 43,960.80, 65,932.80 and 14,369.76 is: 21,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,960.80 : 65,932.80 = 14,369.76 : x
  2. Step 2: Convert to fraction form
    43,960.80/65,932.80 = 14,369.76/x
  3. Step 3: Cross multiply
    43,960.80x = 65,932.80 × 14,369.76
  4. Step 4: Simplify right side
    43,960.80x = 947,438,512.13
  5. Step 5: Solve for x
    x = 947,438,512.13/43,960.80
  6. Step 6: Final answer
    x = 21,551.89

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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.