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Finding the Third Proportional to 9,974 and 15,309

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Solution

The third proportional to 9,974 and 15,309 is: 23,497.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,974 : 15,309 = 15,309 : x
  2. Step 2: Convert to fraction form
    9,974/15,309 = 15,309/x
  3. Step 3: Cross multiply
    9,974x = 15,309 × 15,309
  4. Step 4: Simplify right side
    9,974x = 234,365,481
  5. Step 5: Solve for x
    x = 234,365,481/9,974
  6. Step 6: Final answer
    x = 23,497.64

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.