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Finding the Fourth Proportional to 12,674.52, 17,491.41 and 7,085.52

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Solution

The fourth proportional to 12,674.52, 17,491.41 and 7,085.52 is: 9,778.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.52 : 17,491.41 = 7,085.52 : x
  2. Step 2: Convert to fraction form
    12,674.52/17,491.41 = 7,085.52/x
  3. Step 3: Cross multiply
    12,674.52x = 17,491.41 × 7,085.52
  4. Step 4: Simplify right side
    12,674.52x = 123,935,735.38
  5. Step 5: Solve for x
    x = 123,935,735.38/12,674.52
  6. Step 6: Final answer
    x = 9,778.34

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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.