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Finding the Third Proportional to 3,862.69 and 5,990.84

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Solution

The third proportional to 3,862.69 and 5,990.84 is: 9,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.69 : 5,990.84 = 5,990.84 : x
  2. Step 2: Convert to fraction form
    3,862.69/5,990.84 = 5,990.84/x
  3. Step 3: Cross multiply
    3,862.69x = 5,990.84 × 5,990.84
  4. Step 4: Simplify right side
    3,862.69x = 35,890,115.23
  5. Step 5: Solve for x
    x = 35,890,115.23/3,862.69
  6. Step 6: Final answer
    x = 9,291.49

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.