Home / 7,520.62-10,378.26-4,163.32

Finding the Fourth Proportional to 7,520.62, 10,378.26 and 4,163.32

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Solution

The fourth proportional to 7,520.62, 10,378.26 and 4,163.32 is: 5,745.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.62 : 10,378.26 = 4,163.32 : x
  2. Step 2: Convert to fraction form
    7,520.62/10,378.26 = 4,163.32/x
  3. Step 3: Cross multiply
    7,520.62x = 10,378.26 × 4,163.32
  4. Step 4: Simplify right side
    7,520.62x = 43,208,017.42
  5. Step 5: Solve for x
    x = 43,208,017.42/7,520.62
  6. Step 6: Final answer
    x = 5,745.27

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Half scale
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Double scale
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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.