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Finding the Third Proportional to 4,427 and 9,705

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Solution

The third proportional to 4,427 and 9,705 is: 21,275.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427 : 9,705 = 9,705 : x
  2. Step 2: Convert to fraction form
    4,427/9,705 = 9,705/x
  3. Step 3: Cross multiply
    4,427x = 9,705 × 9,705
  4. Step 4: Simplify right side
    4,427x = 94,187,025
  5. Step 5: Solve for x
    x = 94,187,025/4,427
  6. Step 6: Final answer
    x = 21,275.59

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.