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Finding the Fourth Proportional to 5,879.01, 8,812.53 and 3,689.28

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Solution

The fourth proportional to 5,879.01, 8,812.53 and 3,689.28 is: 5,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.01 : 8,812.53 = 3,689.28 : x
  2. Step 2: Convert to fraction form
    5,879.01/8,812.53 = 3,689.28/x
  3. Step 3: Cross multiply
    5,879.01x = 8,812.53 × 3,689.28
  4. Step 4: Simplify right side
    5,879.01x = 32,511,890.68
  5. Step 5: Solve for x
    x = 32,511,890.68/5,879.01
  6. Step 6: Final answer
    x = 5,530.16

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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.