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Finding the Fourth Proportional to 5,396.08, 7,447.80 and 3,532

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Solution

The fourth proportional to 5,396.08, 7,447.80 and 3,532 is: 4,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.08 : 7,447.80 = 3,532 : x
  2. Step 2: Convert to fraction form
    5,396.08/7,447.80 = 3,532/x
  3. Step 3: Cross multiply
    5,396.08x = 7,447.80 × 3,532
  4. Step 4: Simplify right side
    5,396.08x = 26,305,629.60
  5. Step 5: Solve for x
    x = 26,305,629.60/5,396.08
  6. Step 6: Final answer
    x = 4,874.95

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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.