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Finding the Fourth Proportional to 27,706.80, 41,560.20 and 8,986.80

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Solution

The fourth proportional to 27,706.80, 41,560.20 and 8,986.80 is: 13,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,706.80 : 41,560.20 = 8,986.80 : x
  2. Step 2: Convert to fraction form
    27,706.80/41,560.20 = 8,986.80/x
  3. Step 3: Cross multiply
    27,706.80x = 41,560.20 × 8,986.80
  4. Step 4: Simplify right side
    27,706.80x = 373,493,205.36
  5. Step 5: Solve for x
    x = 373,493,205.36/27,706.80
  6. Step 6: Final answer
    x = 13,480.20

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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.