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Finding the Third Proportional to 28,209.75 and 61,340.25

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Solution

The third proportional to 28,209.75 and 61,340.25 is: 133,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.75 : 61,340.25 = 61,340.25 : x
  2. Step 2: Convert to fraction form
    28,209.75/61,340.25 = 61,340.25/x
  3. Step 3: Cross multiply
    28,209.75x = 61,340.25 × 61,340.25
  4. Step 4: Simplify right side
    28,209.75x = 3,762,626,270.06
  5. Step 5: Solve for x
    x = 3,762,626,270.06/28,209.75
  6. Step 6: Final answer
    x = 133,380.35

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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.