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Finding the Fourth Proportional to 35,279.76, 52,919.69 and 8,625.70

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Solution

The fourth proportional to 35,279.76, 52,919.69 and 8,625.70 is: 12,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,279.76 : 52,919.69 = 8,625.70 : x
  2. Step 2: Convert to fraction form
    35,279.76/52,919.69 = 8,625.70/x
  3. Step 3: Cross multiply
    35,279.76x = 52,919.69 × 8,625.70
  4. Step 4: Simplify right side
    35,279.76x = 456,469,370.03
  5. Step 5: Solve for x
    x = 456,469,370.03/35,279.76
  6. Step 6: Final answer
    x = 12,938.56

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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.