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Finding the Fourth Proportional to 47,753.34, 65,879.88 and 28,893.30

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Solution

The fourth proportional to 47,753.34, 65,879.88 and 28,893.30 is: 39,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,753.34 : 65,879.88 = 28,893.30 : x
  2. Step 2: Convert to fraction form
    47,753.34/65,879.88 = 28,893.30/x
  3. Step 3: Cross multiply
    47,753.34x = 65,879.88 × 28,893.30
  4. Step 4: Simplify right side
    47,753.34x = 1,903,487,136.80
  5. Step 5: Solve for x
    x = 1,903,487,136.80/47,753.34
  6. Step 6: Final answer
    x = 39,860.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.