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Finding the Fourth Proportional to 17,960.70, 26,943.89 and 5,477.87

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Solution

The fourth proportional to 17,960.70, 26,943.89 and 5,477.87 is: 8,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,960.70 : 26,943.89 = 5,477.87 : x
  2. Step 2: Convert to fraction form
    17,960.70/26,943.89 = 5,477.87/x
  3. Step 3: Cross multiply
    17,960.70x = 26,943.89 × 5,477.87
  4. Step 4: Simplify right side
    17,960.70x = 147,594,964.61
  5. Step 5: Solve for x
    x = 147,594,964.61/17,960.70
  6. Step 6: Final answer
    x = 8,217.66

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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.