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Finding the Fourth Proportional to 5,797.16, 8,688.05 and 3,157.90

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Solution

The fourth proportional to 5,797.16, 8,688.05 and 3,157.90 is: 4,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,797.16 : 8,688.05 = 3,157.90 : x
  2. Step 2: Convert to fraction form
    5,797.16/8,688.05 = 3,157.90/x
  3. Step 3: Cross multiply
    5,797.16x = 8,688.05 × 3,157.90
  4. Step 4: Simplify right side
    5,797.16x = 27,435,949.65
  5. Step 5: Solve for x
    x = 27,435,949.65/5,797.16
  6. Step 6: Final answer
    x = 4,732.65

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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.