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Finding the Fourth Proportional to 19,336.73, 28,947.66 and 10,544.99

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Solution

The fourth proportional to 19,336.73, 28,947.66 and 10,544.99 is: 15,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,336.73 : 28,947.66 = 10,544.99 : x
  2. Step 2: Convert to fraction form
    19,336.73/28,947.66 = 10,544.99/x
  3. Step 3: Cross multiply
    19,336.73x = 28,947.66 × 10,544.99
  4. Step 4: Simplify right side
    19,336.73x = 305,252,600.94
  5. Step 5: Solve for x
    x = 305,252,600.94/19,336.73
  6. Step 6: Final answer
    x = 15,786.16

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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.