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Finding the Fourth Proportional to 11,078.75, 16,629.07 and 4,843.07

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Solution

The fourth proportional to 11,078.75, 16,629.07 and 4,843.07 is: 7,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.75 : 16,629.07 = 4,843.07 : x
  2. Step 2: Convert to fraction form
    11,078.75/16,629.07 = 4,843.07/x
  3. Step 3: Cross multiply
    11,078.75x = 16,629.07 × 4,843.07
  4. Step 4: Simplify right side
    11,078.75x = 80,535,693.08
  5. Step 5: Solve for x
    x = 80,535,693.08/11,078.75
  6. Step 6: Final answer
    x = 7,269.38

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1.5x scale

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.