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Finding the Fourth Proportional to 9,866.44, 13,619.58 and 6,091.13

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Solution

The fourth proportional to 9,866.44, 13,619.58 and 6,091.13 is: 8,408.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.44 : 13,619.58 = 6,091.13 : x
  2. Step 2: Convert to fraction form
    9,866.44/13,619.58 = 6,091.13/x
  3. Step 3: Cross multiply
    9,866.44x = 13,619.58 × 6,091.13
  4. Step 4: Simplify right side
    9,866.44x = 82,958,694.93
  5. Step 5: Solve for x
    x = 82,958,694.93/9,866.44
  6. Step 6: Final answer
    x = 8,408.17

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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.