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Finding the Third Proportional to 18,987.19 and 41,554.13

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Solution

The third proportional to 18,987.19 and 41,554.13 is: 90,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.19 : 41,554.13 = 41,554.13 : x
  2. Step 2: Convert to fraction form
    18,987.19/41,554.13 = 41,554.13/x
  3. Step 3: Cross multiply
    18,987.19x = 41,554.13 × 41,554.13
  4. Step 4: Simplify right side
    18,987.19x = 1,726,745,304.52
  5. Step 5: Solve for x
    x = 1,726,745,304.52/18,987.19
  6. Step 6: Final answer
    x = 90,942.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.