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Finding the Fourth Proportional to 7,105.54, 9,805.71 and 4,273

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Solution

The fourth proportional to 7,105.54, 9,805.71 and 4,273 is: 5,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.54 : 9,805.71 = 4,273 : x
  2. Step 2: Convert to fraction form
    7,105.54/9,805.71 = 4,273/x
  3. Step 3: Cross multiply
    7,105.54x = 9,805.71 × 4,273
  4. Step 4: Simplify right side
    7,105.54x = 41,899,798.83
  5. Step 5: Solve for x
    x = 41,899,798.83/7,105.54
  6. Step 6: Final answer
    x = 5,896.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.