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Finding the Third Proportional to 31,408 and 44,020

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Solution

The third proportional to 31,408 and 44,020 is: 61,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,408 : 44,020 = 44,020 : x
  2. Step 2: Convert to fraction form
    31,408/44,020 = 44,020/x
  3. Step 3: Cross multiply
    31,408x = 44,020 × 44,020
  4. Step 4: Simplify right side
    31,408x = 1,937,760,400
  5. Step 5: Solve for x
    x = 1,937,760,400/31,408
  6. Step 6: Final answer
    x = 61,696.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.