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Finding the Fourth Proportional to 13,804.63, 19,049.81 and 7,836.19

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Solution

The fourth proportional to 13,804.63, 19,049.81 and 7,836.19 is: 10,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,804.63 : 19,049.81 = 7,836.19 : x
  2. Step 2: Convert to fraction form
    13,804.63/19,049.81 = 7,836.19/x
  3. Step 3: Cross multiply
    13,804.63x = 19,049.81 × 7,836.19
  4. Step 4: Simplify right side
    13,804.63x = 149,277,930.62
  5. Step 5: Solve for x
    x = 149,277,930.62/13,804.63
  6. Step 6: Final answer
    x = 10,813.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.