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Finding the Third Proportional to 18,171 and 25,726.50

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Solution

The third proportional to 18,171 and 25,726.50 is: 36,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171 : 25,726.50 = 25,726.50 : x
  2. Step 2: Convert to fraction form
    18,171/25,726.50 = 25,726.50/x
  3. Step 3: Cross multiply
    18,171x = 25,726.50 × 25,726.50
  4. Step 4: Simplify right side
    18,171x = 661,852,802.25
  5. Step 5: Solve for x
    x = 661,852,802.25/18,171
  6. Step 6: Final answer
    x = 36,423.58

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.