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Finding the Fourth Proportional to 43,753.65, 65,640.87 and 14,171.46

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Solution

The fourth proportional to 43,753.65, 65,640.87 and 14,171.46 is: 21,260.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,753.65 : 65,640.87 = 14,171.46 : x
  2. Step 2: Convert to fraction form
    43,753.65/65,640.87 = 14,171.46/x
  3. Step 3: Cross multiply
    43,753.65x = 65,640.87 × 14,171.46
  4. Step 4: Simplify right side
    43,753.65x = 930,226,963.57
  5. Step 5: Solve for x
    x = 930,226,963.57/43,753.65
  6. Step 6: Final answer
    x = 21,260.56

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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.