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Finding the Fourth Proportional to 8,496.28, 11,720.14 and 7,894.91

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Solution

The fourth proportional to 8,496.28, 11,720.14 and 7,894.91 is: 10,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,496.28 : 11,720.14 = 7,894.91 : x
  2. Step 2: Convert to fraction form
    8,496.28/11,720.14 = 7,894.91/x
  3. Step 3: Cross multiply
    8,496.28x = 11,720.14 × 7,894.91
  4. Step 4: Simplify right side
    8,496.28x = 92,529,391.89
  5. Step 5: Solve for x
    x = 92,529,391.89/8,496.28
  6. Step 6: Final answer
    x = 10,890.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.