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Finding the Fourth Proportional to 17,792.84, 26,694.12 and 5,313.44

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Solution

The fourth proportional to 17,792.84, 26,694.12 and 5,313.44 is: 7,971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,792.84 : 26,694.12 = 5,313.44 : x
  2. Step 2: Convert to fraction form
    17,792.84/26,694.12 = 5,313.44/x
  3. Step 3: Cross multiply
    17,792.84x = 26,694.12 × 5,313.44
  4. Step 4: Simplify right side
    17,792.84x = 141,837,604.97
  5. Step 5: Solve for x
    x = 141,837,604.97/17,792.84
  6. Step 6: Final answer
    x = 7,971.61

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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.