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Finding the Fourth Proportional to 45,850.35, 68,770.92 and 12,573.77

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Solution

The fourth proportional to 45,850.35, 68,770.92 and 12,573.77 is: 18,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,850.35 : 68,770.92 = 12,573.77 : x
  2. Step 2: Convert to fraction form
    45,850.35/68,770.92 = 12,573.77/x
  3. Step 3: Cross multiply
    45,850.35x = 68,770.92 × 12,573.77
  4. Step 4: Simplify right side
    45,850.35x = 864,709,434.07
  5. Step 5: Solve for x
    x = 864,709,434.07/45,850.35
  6. Step 6: Final answer
    x = 18,859.38

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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.