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Finding the Third Proportional to 38,668 and 84,710

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Solution

The third proportional to 38,668 and 84,710 is: 185,574.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668 : 84,710 = 84,710 : x
  2. Step 2: Convert to fraction form
    38,668/84,710 = 84,710/x
  3. Step 3: Cross multiply
    38,668x = 84,710 × 84,710
  4. Step 4: Simplify right side
    38,668x = 7,175,784,100
  5. Step 5: Solve for x
    x = 7,175,784,100/38,668
  6. Step 6: Final answer
    x = 185,574.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.