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Finding the Fourth Proportional to 15,194.80, 22,792.20 and 8,282.80

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Solution

The fourth proportional to 15,194.80, 22,792.20 and 8,282.80 is: 12,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.80 : 22,792.20 = 8,282.80 : x
  2. Step 2: Convert to fraction form
    15,194.80/22,792.20 = 8,282.80/x
  3. Step 3: Cross multiply
    15,194.80x = 22,792.20 × 8,282.80
  4. Step 4: Simplify right side
    15,194.80x = 188,783,234.16
  5. Step 5: Solve for x
    x = 188,783,234.16/15,194.80
  6. Step 6: Final answer
    x = 12,424.20

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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.