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Finding the Fourth Proportional to 9,933.69, 14,891.28 and 3,355.28

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Solution

The fourth proportional to 9,933.69, 14,891.28 and 3,355.28 is: 5,029.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,933.69 : 14,891.28 = 3,355.28 : x
  2. Step 2: Convert to fraction form
    9,933.69/14,891.28 = 3,355.28/x
  3. Step 3: Cross multiply
    9,933.69x = 14,891.28 × 3,355.28
  4. Step 4: Simplify right side
    9,933.69x = 49,964,382.76
  5. Step 5: Solve for x
    x = 49,964,382.76/9,933.69
  6. Step 6: Final answer
    x = 5,029.79

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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.