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Finding the Third Proportional to 26,128 and 40,036

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Solution

The third proportional to 26,128 and 40,036 is: 61,347.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128 : 40,036 = 40,036 : x
  2. Step 2: Convert to fraction form
    26,128/40,036 = 40,036/x
  3. Step 3: Cross multiply
    26,128x = 40,036 × 40,036
  4. Step 4: Simplify right side
    26,128x = 1,602,881,296
  5. Step 5: Solve for x
    x = 1,602,881,296/26,128
  6. Step 6: Final answer
    x = 61,347.26

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.