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Finding the Third Proportional to 49,371.75 and 79,506

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Solution

The third proportional to 49,371.75 and 79,506 is: 128,032.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,371.75 : 79,506 = 79,506 : x
  2. Step 2: Convert to fraction form
    49,371.75/79,506 = 79,506/x
  3. Step 3: Cross multiply
    49,371.75x = 79,506 × 79,506
  4. Step 4: Simplify right side
    49,371.75x = 6,321,204,036
  5. Step 5: Solve for x
    x = 6,321,204,036/49,371.75
  6. Step 6: Final answer
    x = 128,032.81

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.