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Finding the Third Proportional to 7,840 and 16,732

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Solution

The third proportional to 7,840 and 16,732 is: 35,709.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840 : 16,732 = 16,732 : x
  2. Step 2: Convert to fraction form
    7,840/16,732 = 16,732/x
  3. Step 3: Cross multiply
    7,840x = 16,732 × 16,732
  4. Step 4: Simplify right side
    7,840x = 279,959,824
  5. Step 5: Solve for x
    x = 279,959,824/7,840
  6. Step 6: Final answer
    x = 35,709.16

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.