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Finding the Fourth Proportional to 7,955.70, 11,933.21 and 2,690.37

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Solution

The fourth proportional to 7,955.70, 11,933.21 and 2,690.37 is: 4,035.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.70 : 11,933.21 = 2,690.37 : x
  2. Step 2: Convert to fraction form
    7,955.70/11,933.21 = 2,690.37/x
  3. Step 3: Cross multiply
    7,955.70x = 11,933.21 × 2,690.37
  4. Step 4: Simplify right side
    7,955.70x = 32,104,736.74
  5. Step 5: Solve for x
    x = 32,104,736.74/7,955.70
  6. Step 6: Final answer
    x = 4,035.44

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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.