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Finding the Third Proportional to 38,128 and 83,636

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Solution

The third proportional to 38,128 and 83,636 is: 183,460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128 : 83,636 = 83,636 : x
  2. Step 2: Convert to fraction form
    38,128/83,636 = 83,636/x
  3. Step 3: Cross multiply
    38,128x = 83,636 × 83,636
  4. Step 4: Simplify right side
    38,128x = 6,994,980,496
  5. Step 5: Solve for x
    x = 6,994,980,496/38,128
  6. Step 6: Final answer
    x = 183,460.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.