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Finding the Fourth Proportional to 8,756.76, 12,084.32 and 5,612.94

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Solution

The fourth proportional to 8,756.76, 12,084.32 and 5,612.94 is: 7,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.76 : 12,084.32 = 5,612.94 : x
  2. Step 2: Convert to fraction form
    8,756.76/12,084.32 = 5,612.94/x
  3. Step 3: Cross multiply
    8,756.76x = 12,084.32 × 5,612.94
  4. Step 4: Simplify right side
    8,756.76x = 67,828,563.10
  5. Step 5: Solve for x
    x = 67,828,563.10/8,756.76
  6. Step 6: Final answer
    x = 7,745.85

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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.