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Finding the Third Proportional to 7,290 and 16,829

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Solution

The third proportional to 7,290 and 16,829 is: 38,849.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290 : 16,829 = 16,829 : x
  2. Step 2: Convert to fraction form
    7,290/16,829 = 16,829/x
  3. Step 3: Cross multiply
    7,290x = 16,829 × 16,829
  4. Step 4: Simplify right side
    7,290x = 283,215,241
  5. Step 5: Solve for x
    x = 283,215,241/7,290
  6. Step 6: Final answer
    x = 38,849.83

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.