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Finding the Third Proportional to 58,688 and 126,728

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Solution

The third proportional to 58,688 and 126,728 is: 273,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,688 : 126,728 = 126,728 : x
  2. Step 2: Convert to fraction form
    58,688/126,728 = 126,728/x
  3. Step 3: Cross multiply
    58,688x = 126,728 × 126,728
  4. Step 4: Simplify right side
    58,688x = 16,059,985,984
  5. Step 5: Solve for x
    x = 16,059,985,984/58,688
  6. Step 6: Final answer
    x = 273,650.25

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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.