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Finding the Fourth Proportional to 61,847.88, 85,350.09 and 34,989.81

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Solution

The fourth proportional to 61,847.88, 85,350.09 and 34,989.81 is: 48,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,847.88 : 85,350.09 = 34,989.81 : x
  2. Step 2: Convert to fraction form
    61,847.88/85,350.09 = 34,989.81/x
  3. Step 3: Cross multiply
    61,847.88x = 85,350.09 × 34,989.81
  4. Step 4: Simplify right side
    61,847.88x = 2,986,383,432.58
  5. Step 5: Solve for x
    x = 2,986,383,432.58/61,847.88
  6. Step 6: Final answer
    x = 48,285.95

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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.