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Finding the Fourth Proportional to 50,671.44, 69,928.92 and 30,534.84

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Solution

The fourth proportional to 50,671.44, 69,928.92 and 30,534.84 is: 42,139.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,671.44 : 69,928.92 = 30,534.84 : x
  2. Step 2: Convert to fraction form
    50,671.44/69,928.92 = 30,534.84/x
  3. Step 3: Cross multiply
    50,671.44x = 69,928.92 × 30,534.84
  4. Step 4: Simplify right side
    50,671.44x = 2,135,268,383.57
  5. Step 5: Solve for x
    x = 2,135,268,383.57/50,671.44
  6. Step 6: Final answer
    x = 42,139.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.