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Finding the Third Proportional to 3,589.88 and 5,516.53

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Solution

The third proportional to 3,589.88 and 5,516.53 is: 8,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.88 : 5,516.53 = 5,516.53 : x
  2. Step 2: Convert to fraction form
    3,589.88/5,516.53 = 5,516.53/x
  3. Step 3: Cross multiply
    3,589.88x = 5,516.53 × 5,516.53
  4. Step 4: Simplify right side
    3,589.88x = 30,432,117.03
  5. Step 5: Solve for x
    x = 30,432,117.03/3,589.88
  6. Step 6: Final answer
    x = 8,477.21

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.