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Finding the Fourth Proportional to 29,960.40, 44,940.60 and 9,181.20

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Solution

The fourth proportional to 29,960.40, 44,940.60 and 9,181.20 is: 13,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,960.40 : 44,940.60 = 9,181.20 : x
  2. Step 2: Convert to fraction form
    29,960.40/44,940.60 = 9,181.20/x
  3. Step 3: Cross multiply
    29,960.40x = 44,940.60 × 9,181.20
  4. Step 4: Simplify right side
    29,960.40x = 412,608,636.72
  5. Step 5: Solve for x
    x = 412,608,636.72/29,960.40
  6. Step 6: Final answer
    x = 13,771.80

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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.