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Finding the Third Proportional to 18,987.75 and 26,794.13

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Solution

The third proportional to 18,987.75 and 26,794.13 is: 37,809.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.75 : 26,794.13 = 26,794.13 : x
  2. Step 2: Convert to fraction form
    18,987.75/26,794.13 = 26,794.13/x
  3. Step 3: Cross multiply
    18,987.75x = 26,794.13 × 26,794.13
  4. Step 4: Simplify right side
    18,987.75x = 717,925,134.52
  5. Step 5: Solve for x
    x = 717,925,134.52/18,987.75
  6. Step 6: Final answer
    x = 37,809.91

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.