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Finding the Third Proportional to 16,916 and 36,178

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Solution

The third proportional to 16,916 and 36,178 is: 77,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,916 : 36,178 = 36,178 : x
  2. Step 2: Convert to fraction form
    16,916/36,178 = 36,178/x
  3. Step 3: Cross multiply
    16,916x = 36,178 × 36,178
  4. Step 4: Simplify right side
    16,916x = 1,308,847,684
  5. Step 5: Solve for x
    x = 1,308,847,684/16,916
  6. Step 6: Final answer
    x = 77,373.36

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.