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Finding the Fourth Proportional to 34,858.91, 52,287.90 and 8,563.88

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Solution

The fourth proportional to 34,858.91, 52,287.90 and 8,563.88 is: 12,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,858.91 : 52,287.90 = 8,563.88 : x
  2. Step 2: Convert to fraction form
    34,858.91/52,287.90 = 8,563.88/x
  3. Step 3: Cross multiply
    34,858.91x = 52,287.90 × 8,563.88
  4. Step 4: Simplify right side
    34,858.91x = 447,787,177.80
  5. Step 5: Solve for x
    x = 447,787,177.80/34,858.91
  6. Step 6: Final answer
    x = 12,845.70

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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.