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Finding the Fourth Proportional to 8,756.69, 12,084.23 and 5,612.87

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Solution

The fourth proportional to 8,756.69, 12,084.23 and 5,612.87 is: 7,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.69 : 12,084.23 = 5,612.87 : x
  2. Step 2: Convert to fraction form
    8,756.69/12,084.23 = 5,612.87/x
  3. Step 3: Cross multiply
    8,756.69x = 12,084.23 × 5,612.87
  4. Step 4: Simplify right side
    8,756.69x = 67,827,183.98
  5. Step 5: Solve for x
    x = 67,827,183.98/8,756.69
  6. Step 6: Final answer
    x = 7,745.76

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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.