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Finding the Fourth Proportional to 12,633.52, 18,942.17 and 5,243.08

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Solution

The fourth proportional to 12,633.52, 18,942.17 and 5,243.08 is: 7,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.52 : 18,942.17 = 5,243.08 : x
  2. Step 2: Convert to fraction form
    12,633.52/18,942.17 = 5,243.08/x
  3. Step 3: Cross multiply
    12,633.52x = 18,942.17 × 5,243.08
  4. Step 4: Simplify right side
    12,633.52x = 99,315,312.68
  5. Step 5: Solve for x
    x = 99,315,312.68/12,633.52
  6. Step 6: Final answer
    x = 7,861.25

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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.