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Finding the Fourth Proportional to 8,804.64, 13,217.16 and 6,961.92

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Solution

The fourth proportional to 8,804.64, 13,217.16 and 6,961.92 is: 10,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,804.64 : 13,217.16 = 6,961.92 : x
  2. Step 2: Convert to fraction form
    8,804.64/13,217.16 = 6,961.92/x
  3. Step 3: Cross multiply
    8,804.64x = 13,217.16 × 6,961.92
  4. Step 4: Simplify right side
    8,804.64x = 92,016,810.55
  5. Step 5: Solve for x
    x = 92,016,810.55/8,804.64
  6. Step 6: Final answer
    x = 10,450.95

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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.