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Finding the Third Proportional to 10,308.94 and 16,215.19

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Solution

The third proportional to 10,308.94 and 16,215.19 is: 25,505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,308.94 : 16,215.19 = 16,215.19 : x
  2. Step 2: Convert to fraction form
    10,308.94/16,215.19 = 16,215.19/x
  3. Step 3: Cross multiply
    10,308.94x = 16,215.19 × 16,215.19
  4. Step 4: Simplify right side
    10,308.94x = 262,932,305.66
  5. Step 5: Solve for x
    x = 262,932,305.66/10,308.94
  6. Step 6: Final answer
    x = 25,505.28

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.