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Finding the Third Proportional to 4,222 and 6,499

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Solution

The third proportional to 4,222 and 6,499 is: 10,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222 : 6,499 = 6,499 : x
  2. Step 2: Convert to fraction form
    4,222/6,499 = 6,499/x
  3. Step 3: Cross multiply
    4,222x = 6,499 × 6,499
  4. Step 4: Simplify right side
    4,222x = 42,237,001
  5. Step 5: Solve for x
    x = 42,237,001/4,222
  6. Step 6: Final answer
    x = 10,004.03

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.