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Finding the Fourth Proportional to 3,670.67, 5,505.99 and 897.36

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Solution

The fourth proportional to 3,670.67, 5,505.99 and 897.36 is: 1,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.67 : 5,505.99 = 897.36 : x
  2. Step 2: Convert to fraction form
    3,670.67/5,505.99 = 897.36/x
  3. Step 3: Cross multiply
    3,670.67x = 5,505.99 × 897.36
  4. Step 4: Simplify right side
    3,670.67x = 4,940,855.19
  5. Step 5: Solve for x
    x = 4,940,855.19/3,670.67
  6. Step 6: Final answer
    x = 1,346.04

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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.