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Finding the Fourth Proportional to 8,163.54, 12,240.42 and 5,534.28

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Solution

The fourth proportional to 8,163.54, 12,240.42 and 5,534.28 is: 8,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.54 : 12,240.42 = 5,534.28 : x
  2. Step 2: Convert to fraction form
    8,163.54/12,240.42 = 5,534.28/x
  3. Step 3: Cross multiply
    8,163.54x = 12,240.42 × 5,534.28
  4. Step 4: Simplify right side
    8,163.54x = 67,741,911.60
  5. Step 5: Solve for x
    x = 67,741,911.60/8,163.54
  6. Step 6: Final answer
    x = 8,298.10

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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.