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Finding the Fourth Proportional to 3,262.97, 4,890.93 and 1,615.97

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Solution

The fourth proportional to 3,262.97, 4,890.93 and 1,615.97 is: 2,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,262.97 : 4,890.93 = 1,615.97 : x
  2. Step 2: Convert to fraction form
    3,262.97/4,890.93 = 1,615.97/x
  3. Step 3: Cross multiply
    3,262.97x = 4,890.93 × 1,615.97
  4. Step 4: Simplify right side
    3,262.97x = 7,903,571.70
  5. Step 5: Solve for x
    x = 7,903,571.70/3,262.97
  6. Step 6: Final answer
    x = 2,422.21

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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.