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Finding the Third Proportional to 18,160.45 and 38,519.30

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Solution

The third proportional to 18,160.45 and 38,519.30 is: 81,701.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,160.45 : 38,519.30 = 38,519.30 : x
  2. Step 2: Convert to fraction form
    18,160.45/38,519.30 = 38,519.30/x
  3. Step 3: Cross multiply
    18,160.45x = 38,519.30 × 38,519.30
  4. Step 4: Simplify right side
    18,160.45x = 1,483,736,231.74
  5. Step 5: Solve for x
    x = 1,483,736,231.74/18,160.45
  6. Step 6: Final answer
    x = 81,701.50

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.