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Finding the Fourth Proportional to 45,340.69, 68,016.21 and 12,062.11

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Solution

The fourth proportional to 45,340.69, 68,016.21 and 12,062.11 is: 18,094.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,340.69 : 68,016.21 = 12,062.11 : x
  2. Step 2: Convert to fraction form
    45,340.69/68,016.21 = 12,062.11/x
  3. Step 3: Cross multiply
    45,340.69x = 68,016.21 × 12,062.11
  4. Step 4: Simplify right side
    45,340.69x = 820,419,006.80
  5. Step 5: Solve for x
    x = 820,419,006.80/45,340.69
  6. Step 6: Final answer
    x = 18,094.54

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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.