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Finding the Third Proportional to 18,721.13 and 26,016.19

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Solution

The third proportional to 18,721.13 and 26,016.19 is: 36,153.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.13 : 26,016.19 = 26,016.19 : x
  2. Step 2: Convert to fraction form
    18,721.13/26,016.19 = 26,016.19/x
  3. Step 3: Cross multiply
    18,721.13x = 26,016.19 × 26,016.19
  4. Step 4: Simplify right side
    18,721.13x = 676,842,012.04
  5. Step 5: Solve for x
    x = 676,842,012.04/18,721.13
  6. Step 6: Final answer
    x = 36,153.92

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.