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Finding the Fourth Proportional to 5,163.45, 7,745.18 and 4,900.50

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Solution

The fourth proportional to 5,163.45, 7,745.18 and 4,900.50 is: 7,350.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.45 : 7,745.18 = 4,900.50 : x
  2. Step 2: Convert to fraction form
    5,163.45/7,745.18 = 4,900.50/x
  3. Step 3: Cross multiply
    5,163.45x = 7,745.18 × 4,900.50
  4. Step 4: Simplify right side
    5,163.45x = 37,955,254.59
  5. Step 5: Solve for x
    x = 37,955,254.59/5,163.45
  6. Step 6: Final answer
    x = 7,350.75

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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.