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Finding the Fourth Proportional to 2,624.67, 3,621.81 and 1,445.67

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Solution

The fourth proportional to 2,624.67, 3,621.81 and 1,445.67 is: 1,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.67 : 3,621.81 = 1,445.67 : x
  2. Step 2: Convert to fraction form
    2,624.67/3,621.81 = 1,445.67/x
  3. Step 3: Cross multiply
    2,624.67x = 3,621.81 × 1,445.67
  4. Step 4: Simplify right side
    2,624.67x = 5,235,942.06
  5. Step 5: Solve for x
    x = 5,235,942.06/2,624.67
  6. Step 6: Final answer
    x = 1,994.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.