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Finding the Fourth Proportional to 50,993.30, 70,372.32 and 30,853.88

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Solution

The fourth proportional to 50,993.30, 70,372.32 and 30,853.88 is: 42,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,993.30 : 70,372.32 = 30,853.88 : x
  2. Step 2: Convert to fraction form
    50,993.30/70,372.32 = 30,853.88/x
  3. Step 3: Cross multiply
    50,993.30x = 70,372.32 × 30,853.88
  4. Step 4: Simplify right side
    50,993.30x = 2,171,259,116.60
  5. Step 5: Solve for x
    x = 2,171,259,116.60/50,993.30
  6. Step 6: Final answer
    x = 42,579.30

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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.