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Finding the Fourth Proportional to 51,251.99, 76,912.19 and 17,972.03

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Solution

The fourth proportional to 51,251.99, 76,912.19 and 17,972.03 is: 26,970.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,251.99 : 76,912.19 = 17,972.03 : x
  2. Step 2: Convert to fraction form
    51,251.99/76,912.19 = 17,972.03/x
  3. Step 3: Cross multiply
    51,251.99x = 76,912.19 × 17,972.03
  4. Step 4: Simplify right side
    51,251.99x = 1,382,268,186.05
  5. Step 5: Solve for x
    x = 1,382,268,186.05/51,251.99
  6. Step 6: Final answer
    x = 26,970.04

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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.