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Finding the Fourth Proportional to 48,607.56, 72,923.09 and 20,512.44

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Solution

The fourth proportional to 48,607.56, 72,923.09 and 20,512.44 is: 30,773.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,607.56 : 72,923.09 = 20,512.44 : x
  2. Step 2: Convert to fraction form
    48,607.56/72,923.09 = 20,512.44/x
  3. Step 3: Cross multiply
    48,607.56x = 72,923.09 × 20,512.44
  4. Step 4: Simplify right side
    48,607.56x = 1,495,830,405.68
  5. Step 5: Solve for x
    x = 1,495,830,405.68/48,607.56
  6. Step 6: Final answer
    x = 30,773.62

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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.