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Finding the Third Proportional to 51,451 and 77,298

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Solution

The third proportional to 51,451 and 77,298 is: 116,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,451 : 77,298 = 77,298 : x
  2. Step 2: Convert to fraction form
    51,451/77,298 = 77,298/x
  3. Step 3: Cross multiply
    51,451x = 77,298 × 77,298
  4. Step 4: Simplify right side
    51,451x = 5,974,980,804
  5. Step 5: Solve for x
    x = 5,974,980,804/51,451
  6. Step 6: Final answer
    x = 116,129.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.