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Finding the Third Proportional to 28,354.50 and 61,629

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Solution

The third proportional to 28,354.50 and 61,629 is: 133,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,354.50 : 61,629 = 61,629 : x
  2. Step 2: Convert to fraction form
    28,354.50/61,629 = 61,629/x
  3. Step 3: Cross multiply
    28,354.50x = 61,629 × 61,629
  4. Step 4: Simplify right side
    28,354.50x = 3,798,133,641
  5. Step 5: Solve for x
    x = 3,798,133,641/28,354.50
  6. Step 6: Final answer
    x = 133,951.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.