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Finding the Fourth Proportional to 5,820.79, 8,724.21 and 2,696.56

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Solution

The fourth proportional to 5,820.79, 8,724.21 and 2,696.56 is: 4,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.79 : 8,724.21 = 2,696.56 : x
  2. Step 2: Convert to fraction form
    5,820.79/8,724.21 = 2,696.56/x
  3. Step 3: Cross multiply
    5,820.79x = 8,724.21 × 2,696.56
  4. Step 4: Simplify right side
    5,820.79x = 23,525,355.72
  5. Step 5: Solve for x
    x = 23,525,355.72/5,820.79
  6. Step 6: Final answer
    x = 4,041.61

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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.