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Finding the Third Proportional to 57,376 and 77,104

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Solution

The third proportional to 57,376 and 77,104 is: 103,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,376 : 77,104 = 77,104 : x
  2. Step 2: Convert to fraction form
    57,376/77,104 = 77,104/x
  3. Step 3: Cross multiply
    57,376x = 77,104 × 77,104
  4. Step 4: Simplify right side
    57,376x = 5,945,026,816
  5. Step 5: Solve for x
    x = 5,945,026,816/57,376
  6. Step 6: Final answer
    x = 103,615.22

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.