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Finding the Fourth Proportional to 11,603.06, 16,004.94 and 6,884

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Solution

The fourth proportional to 11,603.06, 16,004.94 and 6,884 is: 9,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.06 : 16,004.94 = 6,884 : x
  2. Step 2: Convert to fraction form
    11,603.06/16,004.94 = 6,884/x
  3. Step 3: Cross multiply
    11,603.06x = 16,004.94 × 6,884
  4. Step 4: Simplify right side
    11,603.06x = 110,178,006.96
  5. Step 5: Solve for x
    x = 110,178,006.96/11,603.06
  6. Step 6: Final answer
    x = 9,495.60

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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.