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Finding the Third Proportional to 40,429.50 and 82,859

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Solution

The third proportional to 40,429.50 and 82,859 is: 169,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,429.50 : 82,859 = 82,859 : x
  2. Step 2: Convert to fraction form
    40,429.50/82,859 = 82,859/x
  3. Step 3: Cross multiply
    40,429.50x = 82,859 × 82,859
  4. Step 4: Simplify right side
    40,429.50x = 6,865,613,881
  5. Step 5: Solve for x
    x = 6,865,613,881/40,429.50
  6. Step 6: Final answer
    x = 169,816.94

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.