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Finding the Third Proportional to 33,280 and 51,312

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Solution

The third proportional to 33,280 and 51,312 is: 79,114.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280 : 51,312 = 51,312 : x
  2. Step 2: Convert to fraction form
    33,280/51,312 = 51,312/x
  3. Step 3: Cross multiply
    33,280x = 51,312 × 51,312
  4. Step 4: Simplify right side
    33,280x = 2,632,921,344
  5. Step 5: Solve for x
    x = 2,632,921,344/33,280
  6. Step 6: Final answer
    x = 79,114.22

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.