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Finding the Third Proportional to 26,440 and 40,988

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Solution

The third proportional to 26,440 and 40,988 is: 63,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,440 : 40,988 = 40,988 : x
  2. Step 2: Convert to fraction form
    26,440/40,988 = 40,988/x
  3. Step 3: Cross multiply
    26,440x = 40,988 × 40,988
  4. Step 4: Simplify right side
    26,440x = 1,680,016,144
  5. Step 5: Solve for x
    x = 1,680,016,144/26,440
  6. Step 6: Final answer
    x = 63,540.70

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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.