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Finding the Third Proportional to 7,208 and 16,628

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Solution

The third proportional to 7,208 and 16,628 is: 38,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208 : 16,628 = 16,628 : x
  2. Step 2: Convert to fraction form
    7,208/16,628 = 16,628/x
  3. Step 3: Cross multiply
    7,208x = 16,628 × 16,628
  4. Step 4: Simplify right side
    7,208x = 276,490,384
  5. Step 5: Solve for x
    x = 276,490,384/7,208
  6. Step 6: Final answer
    x = 38,358.82

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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.