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Finding the Third Proportional to 28,085 and 61,091

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Solution

The third proportional to 28,085 and 61,091 is: 132,886.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085 : 61,091 = 61,091 : x
  2. Step 2: Convert to fraction form
    28,085/61,091 = 61,091/x
  3. Step 3: Cross multiply
    28,085x = 61,091 × 61,091
  4. Step 4: Simplify right side
    28,085x = 3,732,110,281
  5. Step 5: Solve for x
    x = 3,732,110,281/28,085
  6. Step 6: Final answer
    x = 132,886.25

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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.