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Finding the Third Proportional to 5,173 and 7,231

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Solution

The third proportional to 5,173 and 7,231 is: 10,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173 : 7,231 = 7,231 : x
  2. Step 2: Convert to fraction form
    5,173/7,231 = 7,231/x
  3. Step 3: Cross multiply
    5,173x = 7,231 × 7,231
  4. Step 4: Simplify right side
    5,173x = 52,287,361
  5. Step 5: Solve for x
    x = 52,287,361/5,173
  6. Step 6: Final answer
    x = 10,107.74

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.