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Finding the Third Proportional to 38,363.63 and 81,648

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Solution

The third proportional to 38,363.63 and 81,648 is: 173,768.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,363.63 : 81,648 = 81,648 : x
  2. Step 2: Convert to fraction form
    38,363.63/81,648 = 81,648/x
  3. Step 3: Cross multiply
    38,363.63x = 81,648 × 81,648
  4. Step 4: Simplify right side
    38,363.63x = 6,666,395,904
  5. Step 5: Solve for x
    x = 6,666,395,904/38,363.63
  6. Step 6: Final answer
    x = 173,768.67

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.