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Finding the Third Proportional to 49,128 and 74,628

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Solution

The third proportional to 49,128 and 74,628 is: 113,363.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,128 : 74,628 = 74,628 : x
  2. Step 2: Convert to fraction form
    49,128/74,628 = 74,628/x
  3. Step 3: Cross multiply
    49,128x = 74,628 × 74,628
  4. Step 4: Simplify right side
    49,128x = 5,569,338,384
  5. Step 5: Solve for x
    x = 5,569,338,384/49,128
  6. Step 6: Final answer
    x = 113,363.83

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.