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Finding the Third Proportional to 4,207 and 9,029

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Solution

The third proportional to 4,207 and 9,029 is: 19,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207 : 9,029 = 9,029 : x
  2. Step 2: Convert to fraction form
    4,207/9,029 = 9,029/x
  3. Step 3: Cross multiply
    4,207x = 9,029 × 9,029
  4. Step 4: Simplify right side
    4,207x = 81,522,841
  5. Step 5: Solve for x
    x = 81,522,841/4,207
  6. Step 6: Final answer
    x = 19,377.90

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.