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Finding the Fourth Proportional to 48,702.96, 73,068.84 and 20,608.56

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Solution

The fourth proportional to 48,702.96, 73,068.84 and 20,608.56 is: 30,918.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,702.96 : 73,068.84 = 20,608.56 : x
  2. Step 2: Convert to fraction form
    48,702.96/73,068.84 = 20,608.56/x
  3. Step 3: Cross multiply
    48,702.96x = 73,068.84 × 20,608.56
  4. Step 4: Simplify right side
    48,702.96x = 1,505,843,573.27
  5. Step 5: Solve for x
    x = 1,505,843,573.27/48,702.96
  6. Step 6: Final answer
    x = 30,918.93

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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.