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Finding the Third Proportional to 82,555 and 127,553

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Solution

The third proportional to 82,555 and 127,553 is: 197,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,555 : 127,553 = 127,553 : x
  2. Step 2: Convert to fraction form
    82,555/127,553 = 127,553/x
  3. Step 3: Cross multiply
    82,555x = 127,553 × 127,553
  4. Step 4: Simplify right side
    82,555x = 16,269,767,809
  5. Step 5: Solve for x
    x = 16,269,767,809/82,555
  6. Step 6: Final answer
    x = 197,077.92

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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.