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Finding the Third Proportional to 18,926 and 30,028

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Solution

The third proportional to 18,926 and 30,028 is: 47,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926 : 30,028 = 30,028 : x
  2. Step 2: Convert to fraction form
    18,926/30,028 = 30,028/x
  3. Step 3: Cross multiply
    18,926x = 30,028 × 30,028
  4. Step 4: Simplify right side
    18,926x = 901,680,784
  5. Step 5: Solve for x
    x = 901,680,784/18,926
  6. Step 6: Final answer
    x = 47,642.44

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.