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Finding the Fourth Proportional to 8,450.75, 11,661.81 and 4,674.12

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Solution

The fourth proportional to 8,450.75, 11,661.81 and 4,674.12 is: 6,450.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.75 : 11,661.81 = 4,674.12 : x
  2. Step 2: Convert to fraction form
    8,450.75/11,661.81 = 4,674.12/x
  3. Step 3: Cross multiply
    8,450.75x = 11,661.81 × 4,674.12
  4. Step 4: Simplify right side
    8,450.75x = 54,508,699.36
  5. Step 5: Solve for x
    x = 54,508,699.36/8,450.75
  6. Step 6: Final answer
    x = 6,450.16

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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.