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Finding the Fourth Proportional to 48,961.42, 73,373.45 and 20,843.42

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Solution

The fourth proportional to 48,961.42, 73,373.45 and 20,843.42 is: 31,235.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,961.42 : 73,373.45 = 20,843.42 : x
  2. Step 2: Convert to fraction form
    48,961.42/73,373.45 = 20,843.42/x
  3. Step 3: Cross multiply
    48,961.42x = 73,373.45 × 20,843.42
  4. Step 4: Simplify right side
    48,961.42x = 1,529,353,164.11
  5. Step 5: Solve for x
    x = 1,529,353,164.11/48,961.42
  6. Step 6: Final answer
    x = 31,235.88

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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.