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Finding the Third Proportional to 4,039.88 and 8,771.63

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Solution

The third proportional to 4,039.88 and 8,771.63 is: 19,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039.88 : 8,771.63 = 8,771.63 : x
  2. Step 2: Convert to fraction form
    4,039.88/8,771.63 = 8,771.63/x
  3. Step 3: Cross multiply
    4,039.88x = 8,771.63 × 8,771.63
  4. Step 4: Simplify right side
    4,039.88x = 76,941,405.14
  5. Step 5: Solve for x
    x = 76,941,405.14/4,039.88
  6. Step 6: Final answer
    x = 19,045.49

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.