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Finding the Third Proportional to 28,100 and 61,276

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Solution

The third proportional to 28,100 and 61,276 is: 133,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,100 : 61,276 = 61,276 : x
  2. Step 2: Convert to fraction form
    28,100/61,276 = 61,276/x
  3. Step 3: Cross multiply
    28,100x = 61,276 × 61,276
  4. Step 4: Simplify right side
    28,100x = 3,754,748,176
  5. Step 5: Solve for x
    x = 3,754,748,176/28,100
  6. Step 6: Final answer
    x = 133,620.93

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.