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Finding the Fourth Proportional to 47,968.86, 72,015.53 and 36,883.30

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Solution

The fourth proportional to 47,968.86, 72,015.53 and 36,883.30 is: 55,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,968.86 : 72,015.53 = 36,883.30 : x
  2. Step 2: Convert to fraction form
    47,968.86/72,015.53 = 36,883.30/x
  3. Step 3: Cross multiply
    47,968.86x = 72,015.53 × 36,883.30
  4. Step 4: Simplify right side
    47,968.86x = 2,656,170,375.69
  5. Step 5: Solve for x
    x = 2,656,170,375.69/47,968.86
  6. Step 6: Final answer
    x = 55,372.81

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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.