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Finding the Fourth Proportional to 3,491.64, 5,236.98 and 894.42

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Solution

The fourth proportional to 3,491.64, 5,236.98 and 894.42 is: 1,341.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.64 : 5,236.98 = 894.42 : x
  2. Step 2: Convert to fraction form
    3,491.64/5,236.98 = 894.42/x
  3. Step 3: Cross multiply
    3,491.64x = 5,236.98 × 894.42
  4. Step 4: Simplify right side
    3,491.64x = 4,684,059.65
  5. Step 5: Solve for x
    x = 4,684,059.65/3,491.64
  6. Step 6: Final answer
    x = 1,341.51

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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.