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Finding the Fourth Proportional to 49,662.80, 74,494.20 and 40,331.60

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Solution

The fourth proportional to 49,662.80, 74,494.20 and 40,331.60 is: 60,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,662.80 : 74,494.20 = 40,331.60 : x
  2. Step 2: Convert to fraction form
    49,662.80/74,494.20 = 40,331.60/x
  3. Step 3: Cross multiply
    49,662.80x = 74,494.20 × 40,331.60
  4. Step 4: Simplify right side
    49,662.80x = 3,004,470,276.72
  5. Step 5: Solve for x
    x = 3,004,470,276.72/49,662.80
  6. Step 6: Final answer
    x = 60,497.40

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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.