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Finding the Third Proportional to 4,114.13 and 8,719.31

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Solution

The third proportional to 4,114.13 and 8,719.31 is: 18,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,114.13 : 8,719.31 = 8,719.31 : x
  2. Step 2: Convert to fraction form
    4,114.13/8,719.31 = 8,719.31/x
  3. Step 3: Cross multiply
    4,114.13x = 8,719.31 × 8,719.31
  4. Step 4: Simplify right side
    4,114.13x = 76,026,410.47
  5. Step 5: Solve for x
    x = 76,026,410.47/4,114.13
  6. Step 6: Final answer
    x = 18,479.36

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.