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Finding the Fourth Proportional to 7,935.98, 11,898.48 and 3,491.51

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Solution

The fourth proportional to 7,935.98, 11,898.48 and 3,491.51 is: 5,234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.98 : 11,898.48 = 3,491.51 : x
  2. Step 2: Convert to fraction form
    7,935.98/11,898.48 = 3,491.51/x
  3. Step 3: Cross multiply
    7,935.98x = 11,898.48 × 3,491.51
  4. Step 4: Simplify right side
    7,935.98x = 41,543,661.90
  5. Step 5: Solve for x
    x = 41,543,661.90/7,935.98
  6. Step 6: Final answer
    x = 5,234.85

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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.