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Finding the Third Proportional to 55,968 and 87,336

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Solution

The third proportional to 55,968 and 87,336 is: 136,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,968 : 87,336 = 87,336 : x
  2. Step 2: Convert to fraction form
    55,968/87,336 = 87,336/x
  3. Step 3: Cross multiply
    55,968x = 87,336 × 87,336
  4. Step 4: Simplify right side
    55,968x = 7,627,576,896
  5. Step 5: Solve for x
    x = 7,627,576,896/55,968
  6. Step 6: Final answer
    x = 136,284.61

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.