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Finding the Third Proportional to 28,016 and 43,377

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Solution

The third proportional to 28,016 and 43,377 is: 67,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016 : 43,377 = 43,377 : x
  2. Step 2: Convert to fraction form
    28,016/43,377 = 43,377/x
  3. Step 3: Cross multiply
    28,016x = 43,377 × 43,377
  4. Step 4: Simplify right side
    28,016x = 1,881,564,129
  5. Step 5: Solve for x
    x = 1,881,564,129/28,016
  6. Step 6: Final answer
    x = 67,160.34

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.