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Finding the Third Proportional to 9,703 and 20,953

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Solution

The third proportional to 9,703 and 20,953 is: 45,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703 : 20,953 = 20,953 : x
  2. Step 2: Convert to fraction form
    9,703/20,953 = 20,953/x
  3. Step 3: Cross multiply
    9,703x = 20,953 × 20,953
  4. Step 4: Simplify right side
    9,703x = 439,028,209
  5. Step 5: Solve for x
    x = 439,028,209/9,703
  6. Step 6: Final answer
    x = 45,246.65

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.