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Finding the Third Proportional to 33,428 and 71,958

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Solution

The third proportional to 33,428 and 71,958 is: 154,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,428 : 71,958 = 71,958 : x
  2. Step 2: Convert to fraction form
    33,428/71,958 = 71,958/x
  3. Step 3: Cross multiply
    33,428x = 71,958 × 71,958
  4. Step 4: Simplify right side
    33,428x = 5,177,953,764
  5. Step 5: Solve for x
    x = 5,177,953,764/33,428
  6. Step 6: Final answer
    x = 154,898.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.