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Finding the Fourth Proportional to 17,957.94, 26,939.76 and 5,475.11

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Solution

The fourth proportional to 17,957.94, 26,939.76 and 5,475.11 is: 8,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.94 : 26,939.76 = 5,475.11 : x
  2. Step 2: Convert to fraction form
    17,957.94/26,939.76 = 5,475.11/x
  3. Step 3: Cross multiply
    17,957.94x = 26,939.76 × 5,475.11
  4. Step 4: Simplify right side
    17,957.94x = 147,498,149.37
  5. Step 5: Solve for x
    x = 147,498,149.37/17,957.94
  6. Step 6: Final answer
    x = 8,213.53

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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.