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Finding the Fourth Proportional to 7,163.84, 10,745.76 and 3,005.81

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Solution

The fourth proportional to 7,163.84, 10,745.76 and 3,005.81 is: 4,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.84 : 10,745.76 = 3,005.81 : x
  2. Step 2: Convert to fraction form
    7,163.84/10,745.76 = 3,005.81/x
  3. Step 3: Cross multiply
    7,163.84x = 10,745.76 × 3,005.81
  4. Step 4: Simplify right side
    7,163.84x = 32,299,710.71
  5. Step 5: Solve for x
    x = 32,299,710.71/7,163.84
  6. Step 6: Final answer
    x = 4,508.71

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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.