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Finding the Third Proportional to 11,956.13 and 15,159.56

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Solution

The third proportional to 11,956.13 and 15,159.56 is: 19,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.13 : 15,159.56 = 15,159.56 : x
  2. Step 2: Convert to fraction form
    11,956.13/15,159.56 = 15,159.56/x
  3. Step 3: Cross multiply
    11,956.13x = 15,159.56 × 15,159.56
  4. Step 4: Simplify right side
    11,956.13x = 229,812,335.19
  5. Step 5: Solve for x
    x = 229,812,335.19/11,956.13
  6. Step 6: Final answer
    x = 19,221.31

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.