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Finding the Fourth Proportional to 2,712.07, 4,068.38 and 737.73

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Solution

The fourth proportional to 2,712.07, 4,068.38 and 737.73 is: 1,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.07 : 4,068.38 = 737.73 : x
  2. Step 2: Convert to fraction form
    2,712.07/4,068.38 = 737.73/x
  3. Step 3: Cross multiply
    2,712.07x = 4,068.38 × 737.73
  4. Step 4: Simplify right side
    2,712.07x = 3,001,365.98
  5. Step 5: Solve for x
    x = 3,001,365.98/2,712.07
  6. Step 6: Final answer
    x = 1,106.67

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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.