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Finding the Third Proportional to 5,126 and 7,222

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Solution

The third proportional to 5,126 and 7,222 is: 10,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126 : 7,222 = 7,222 : x
  2. Step 2: Convert to fraction form
    5,126/7,222 = 7,222/x
  3. Step 3: Cross multiply
    5,126x = 7,222 × 7,222
  4. Step 4: Simplify right side
    5,126x = 52,157,284
  5. Step 5: Solve for x
    x = 52,157,284/5,126
  6. Step 6: Final answer
    x = 10,175.05

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.