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Finding the Fourth Proportional to 50,867.94, 76,301.16 and 12,399.60

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Solution

The fourth proportional to 50,867.94, 76,301.16 and 12,399.60 is: 18,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,867.94 : 76,301.16 = 12,399.60 : x
  2. Step 2: Convert to fraction form
    50,867.94/76,301.16 = 12,399.60/x
  3. Step 3: Cross multiply
    50,867.94x = 76,301.16 × 12,399.60
  4. Step 4: Simplify right side
    50,867.94x = 946,103,863.54
  5. Step 5: Solve for x
    x = 946,103,863.54/50,867.94
  6. Step 6: Final answer
    x = 18,599.22

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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.