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Finding the Fourth Proportional to 3,495.78, 5,236.14 and 1,644.12

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Solution

The fourth proportional to 3,495.78, 5,236.14 and 1,644.12 is: 2,462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,495.78 : 5,236.14 = 1,644.12 : x
  2. Step 2: Convert to fraction form
    3,495.78/5,236.14 = 1,644.12/x
  3. Step 3: Cross multiply
    3,495.78x = 5,236.14 × 1,644.12
  4. Step 4: Simplify right side
    3,495.78x = 8,608,816.32
  5. Step 5: Solve for x
    x = 8,608,816.32/3,495.78
  6. Step 6: Final answer
    x = 2,462.63

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1.5x scale

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.