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Finding the Fourth Proportional to 8,632.32, 12,949.22 and 2,392.32

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Solution

The fourth proportional to 8,632.32, 12,949.22 and 2,392.32 is: 3,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.32 : 12,949.22 = 2,392.32 : x
  2. Step 2: Convert to fraction form
    8,632.32/12,949.22 = 2,392.32/x
  3. Step 3: Cross multiply
    8,632.32x = 12,949.22 × 2,392.32
  4. Step 4: Simplify right side
    8,632.32x = 30,978,677.99
  5. Step 5: Solve for x
    x = 30,978,677.99/8,632.32
  6. Step 6: Final answer
    x = 3,588.69

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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.