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Finding the Fourth Proportional to 9,843.78, 13,584.48 and 5,865.06

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Solution

The fourth proportional to 9,843.78, 13,584.48 and 5,865.06 is: 8,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843.78 : 13,584.48 = 5,865.06 : x
  2. Step 2: Convert to fraction form
    9,843.78/13,584.48 = 5,865.06/x
  3. Step 3: Cross multiply
    9,843.78x = 13,584.48 × 5,865.06
  4. Step 4: Simplify right side
    9,843.78x = 79,673,790.27
  5. Step 5: Solve for x
    x = 79,673,790.27/9,843.78
  6. Step 6: Final answer
    x = 8,093.82

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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.