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Finding the Third Proportional to 4,222 and 5,158

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Solution

The third proportional to 4,222 and 5,158 is: 6,301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222 : 5,158 = 5,158 : x
  2. Step 2: Convert to fraction form
    4,222/5,158 = 5,158/x
  3. Step 3: Cross multiply
    4,222x = 5,158 × 5,158
  4. Step 4: Simplify right side
    4,222x = 26,604,964
  5. Step 5: Solve for x
    x = 26,604,964/4,222
  6. Step 6: Final answer
    x = 6,301.51

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.