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Finding the Fourth Proportional to 17,218.73, 25,827.73 and 4,738.70

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Solution

The fourth proportional to 17,218.73, 25,827.73 and 4,738.70 is: 7,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218.73 : 25,827.73 = 4,738.70 : x
  2. Step 2: Convert to fraction form
    17,218.73/25,827.73 = 4,738.70/x
  3. Step 3: Cross multiply
    17,218.73x = 25,827.73 × 4,738.70
  4. Step 4: Simplify right side
    17,218.73x = 122,389,864.15
  5. Step 5: Solve for x
    x = 122,389,864.15/17,218.73
  6. Step 6: Final answer
    x = 7,107.95

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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.