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Finding the Third Proportional to 29,731.50 and 40,770

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Solution

The third proportional to 29,731.50 and 40,770 is: 55,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,731.50 : 40,770 = 40,770 : x
  2. Step 2: Convert to fraction form
    29,731.50/40,770 = 40,770/x
  3. Step 3: Cross multiply
    29,731.50x = 40,770 × 40,770
  4. Step 4: Simplify right side
    29,731.50x = 1,662,192,900
  5. Step 5: Solve for x
    x = 1,662,192,900/29,731.50
  6. Step 6: Final answer
    x = 55,906.80

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.