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Finding the Fourth Proportional to 48,650.94, 72,999.09 and 47,864.70

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Solution

The fourth proportional to 48,650.94, 72,999.09 and 47,864.70 is: 71,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,650.94 : 72,999.09 = 47,864.70 : x
  2. Step 2: Convert to fraction form
    48,650.94/72,999.09 = 47,864.70/x
  3. Step 3: Cross multiply
    48,650.94x = 72,999.09 × 47,864.70
  4. Step 4: Simplify right side
    48,650.94x = 3,494,079,543.12
  5. Step 5: Solve for x
    x = 3,494,079,543.12/48,650.94
  6. Step 6: Final answer
    x = 71,819.36

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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.