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Finding the Third Proportional to 9,374 and 20,479

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Solution

The third proportional to 9,374 and 20,479 is: 44,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,374 : 20,479 = 20,479 : x
  2. Step 2: Convert to fraction form
    9,374/20,479 = 20,479/x
  3. Step 3: Cross multiply
    9,374x = 20,479 × 20,479
  4. Step 4: Simplify right side
    9,374x = 419,389,441
  5. Step 5: Solve for x
    x = 419,389,441/9,374
  6. Step 6: Final answer
    x = 44,739.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.