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Finding the Third Proportional to 38,335 and 83,420

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Solution

The third proportional to 38,335 and 83,420 is: 181,528.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,335 : 83,420 = 83,420 : x
  2. Step 2: Convert to fraction form
    38,335/83,420 = 83,420/x
  3. Step 3: Cross multiply
    38,335x = 83,420 × 83,420
  4. Step 4: Simplify right side
    38,335x = 6,958,896,400
  5. Step 5: Solve for x
    x = 6,958,896,400/38,335
  6. Step 6: Final answer
    x = 181,528.54

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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.