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Finding the Third Proportional to 18,987 and 41,548.50

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Solution

The third proportional to 18,987 and 41,548.50 is: 90,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987 : 41,548.50 = 41,548.50 : x
  2. Step 2: Convert to fraction form
    18,987/41,548.50 = 41,548.50/x
  3. Step 3: Cross multiply
    18,987x = 41,548.50 × 41,548.50
  4. Step 4: Simplify right side
    18,987x = 1,726,277,852.25
  5. Step 5: Solve for x
    x = 1,726,277,852.25/18,987
  6. Step 6: Final answer
    x = 90,918.94

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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.