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Finding the Fourth Proportional to 8,245.44, 12,376.80 and 3,052.80

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Solution

The fourth proportional to 8,245.44, 12,376.80 and 3,052.80 is: 4,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.44 : 12,376.80 = 3,052.80 : x
  2. Step 2: Convert to fraction form
    8,245.44/12,376.80 = 3,052.80/x
  3. Step 3: Cross multiply
    8,245.44x = 12,376.80 × 3,052.80
  4. Step 4: Simplify right side
    8,245.44x = 37,783,895.04
  5. Step 5: Solve for x
    x = 37,783,895.04/8,245.44
  6. Step 6: Final answer
    x = 4,582.40

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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.