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Finding the Third Proportional to 28,240 and 41,880

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Solution

The third proportional to 28,240 and 41,880 is: 62,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240 : 41,880 = 41,880 : x
  2. Step 2: Convert to fraction form
    28,240/41,880 = 41,880/x
  3. Step 3: Cross multiply
    28,240x = 41,880 × 41,880
  4. Step 4: Simplify right side
    28,240x = 1,753,934,400
  5. Step 5: Solve for x
    x = 1,753,934,400/28,240
  6. Step 6: Final answer
    x = 62,108.16

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.