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Finding the Fourth Proportional to 8,230.98, 12,334.08 and 4,940.48

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Solution

The fourth proportional to 8,230.98, 12,334.08 and 4,940.48 is: 7,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,230.98 : 12,334.08 = 4,940.48 : x
  2. Step 2: Convert to fraction form
    8,230.98/12,334.08 = 4,940.48/x
  3. Step 3: Cross multiply
    8,230.98x = 12,334.08 × 4,940.48
  4. Step 4: Simplify right side
    8,230.98x = 60,936,275.56
  5. Step 5: Solve for x
    x = 60,936,275.56/8,230.98
  6. Step 6: Final answer
    x = 7,403.28

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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.