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Finding the Third Proportional to 40,362 and 87,126

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Solution

The third proportional to 40,362 and 87,126 is: 188,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,362 : 87,126 = 87,126 : x
  2. Step 2: Convert to fraction form
    40,362/87,126 = 87,126/x
  3. Step 3: Cross multiply
    40,362x = 87,126 × 87,126
  4. Step 4: Simplify right side
    40,362x = 7,590,939,876
  5. Step 5: Solve for x
    x = 7,590,939,876/40,362
  6. Step 6: Final answer
    x = 188,071.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.