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Finding the Fourth Proportional to 3,311.65, 4,967.44 and 846.45

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Solution

The fourth proportional to 3,311.65, 4,967.44 and 846.45 is: 1,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.65 : 4,967.44 = 846.45 : x
  2. Step 2: Convert to fraction form
    3,311.65/4,967.44 = 846.45/x
  3. Step 3: Cross multiply
    3,311.65x = 4,967.44 × 846.45
  4. Step 4: Simplify right side
    3,311.65x = 4,204,689.59
  5. Step 5: Solve for x
    x = 4,204,689.59/3,311.65
  6. Step 6: Final answer
    x = 1,269.67

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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.