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Finding the Third Proportional to 15,157.13 and 20,103.19

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Solution

The third proportional to 15,157.13 and 20,103.19 is: 26,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157.13 : 20,103.19 = 20,103.19 : x
  2. Step 2: Convert to fraction form
    15,157.13/20,103.19 = 20,103.19/x
  3. Step 3: Cross multiply
    15,157.13x = 20,103.19 × 20,103.19
  4. Step 4: Simplify right side
    15,157.13x = 404,138,147.66
  5. Step 5: Solve for x
    x = 404,138,147.66/15,157.13
  6. Step 6: Final answer
    x = 26,663.25

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.