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Finding the Third Proportional to 4,790 and 9,499

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Solution

The third proportional to 4,790 and 9,499 is: 18,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790 : 9,499 = 9,499 : x
  2. Step 2: Convert to fraction form
    4,790/9,499 = 9,499/x
  3. Step 3: Cross multiply
    4,790x = 9,499 × 9,499
  4. Step 4: Simplify right side
    4,790x = 90,231,001
  5. Step 5: Solve for x
    x = 90,231,001/4,790
  6. Step 6: Final answer
    x = 18,837.37

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.