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Finding the Fourth Proportional to 5,367.36, 7,405.22 and 3,480.42

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Solution

The fourth proportional to 5,367.36, 7,405.22 and 3,480.42 is: 4,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,367.36 : 7,405.22 = 3,480.42 : x
  2. Step 2: Convert to fraction form
    5,367.36/7,405.22 = 3,480.42/x
  3. Step 3: Cross multiply
    5,367.36x = 7,405.22 × 3,480.42
  4. Step 4: Simplify right side
    5,367.36x = 25,773,270.61
  5. Step 5: Solve for x
    x = 25,773,270.61/5,367.36
  6. Step 6: Final answer
    x = 4,801.85

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1.5x scale

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.