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Finding the Third Proportional to 58,422 and 126,216

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Solution

The third proportional to 58,422 and 126,216 is: 272,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,422 : 126,216 = 126,216 : x
  2. Step 2: Convert to fraction form
    58,422/126,216 = 126,216/x
  3. Step 3: Cross multiply
    58,422x = 126,216 × 126,216
  4. Step 4: Simplify right side
    58,422x = 15,930,478,656
  5. Step 5: Solve for x
    x = 15,930,478,656/58,422
  6. Step 6: Final answer
    x = 272,679.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.