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Finding the Fourth Proportional to 8,786.94, 13,172.91 and 3,237.49

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Solution

The fourth proportional to 8,786.94, 13,172.91 and 3,237.49 is: 4,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.94 : 13,172.91 = 3,237.49 : x
  2. Step 2: Convert to fraction form
    8,786.94/13,172.91 = 3,237.49/x
  3. Step 3: Cross multiply
    8,786.94x = 13,172.91 × 3,237.49
  4. Step 4: Simplify right side
    8,786.94x = 42,647,164.40
  5. Step 5: Solve for x
    x = 42,647,164.40/8,786.94
  6. Step 6: Final answer
    x = 4,853.47

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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.