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Finding the Fourth Proportional to 10,992.36, 16,477.02 and 8,696.04

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Solution

The fourth proportional to 10,992.36, 16,477.02 and 8,696.04 is: 13,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.36 : 16,477.02 = 8,696.04 : x
  2. Step 2: Convert to fraction form
    10,992.36/16,477.02 = 8,696.04/x
  3. Step 3: Cross multiply
    10,992.36x = 16,477.02 × 8,696.04
  4. Step 4: Simplify right side
    10,992.36x = 143,284,825.00
  5. Step 5: Solve for x
    x = 143,284,825.00/10,992.36
  6. Step 6: Final answer
    x = 13,034.95

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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.