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Finding the Fourth Proportional to 9,163.06, 12,633.06 and 9,039.12

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Solution

The fourth proportional to 9,163.06, 12,633.06 and 9,039.12 is: 12,462.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.06 : 12,633.06 = 9,039.12 : x
  2. Step 2: Convert to fraction form
    9,163.06/12,633.06 = 9,039.12/x
  3. Step 3: Cross multiply
    9,163.06x = 12,633.06 × 9,039.12
  4. Step 4: Simplify right side
    9,163.06x = 114,191,745.31
  5. Step 5: Solve for x
    x = 114,191,745.31/9,163.06
  6. Step 6: Final answer
    x = 12,462.18

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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.