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Finding the Third Proportional to 39,450 and 86,124

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Solution

The third proportional to 39,450 and 86,124 is: 188,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,450 : 86,124 = 86,124 : x
  2. Step 2: Convert to fraction form
    39,450/86,124 = 86,124/x
  3. Step 3: Cross multiply
    39,450x = 86,124 × 86,124
  4. Step 4: Simplify right side
    39,450x = 7,417,343,376
  5. Step 5: Solve for x
    x = 7,417,343,376/39,450
  6. Step 6: Final answer
    x = 188,018.84

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.