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Finding the Third Proportional to 14,158 and 31,174

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Solution

The third proportional to 14,158 and 31,174 is: 68,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158 : 31,174 = 31,174 : x
  2. Step 2: Convert to fraction form
    14,158/31,174 = 31,174/x
  3. Step 3: Cross multiply
    14,158x = 31,174 × 31,174
  4. Step 4: Simplify right side
    14,158x = 971,818,276
  5. Step 5: Solve for x
    x = 971,818,276/14,158
  6. Step 6: Final answer
    x = 68,640.93

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.