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Finding the Fourth Proportional to 50,986.44, 76,479.50 and 13,550.28

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Solution

The fourth proportional to 50,986.44, 76,479.50 and 13,550.28 is: 20,325.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,986.44 : 76,479.50 = 13,550.28 : x
  2. Step 2: Convert to fraction form
    50,986.44/76,479.50 = 13,550.28/x
  3. Step 3: Cross multiply
    50,986.44x = 76,479.50 × 13,550.28
  4. Step 4: Simplify right side
    50,986.44x = 1,036,318,639.26
  5. Step 5: Solve for x
    x = 1,036,318,639.26/50,986.44
  6. Step 6: Final answer
    x = 20,325.38

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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.