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Finding the Third Proportional to 12,128 and 26,110

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Solution

The third proportional to 12,128 and 26,110 is: 56,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128 : 26,110 = 26,110 : x
  2. Step 2: Convert to fraction form
    12,128/26,110 = 26,110/x
  3. Step 3: Cross multiply
    12,128x = 26,110 × 26,110
  4. Step 4: Simplify right side
    12,128x = 681,732,100
  5. Step 5: Solve for x
    x = 681,732,100/12,128
  6. Step 6: Final answer
    x = 56,211.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.