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Finding the Third Proportional to 49,464 and 79,758

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Solution

The third proportional to 49,464 and 79,758 is: 128,605.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,464 : 79,758 = 79,758 : x
  2. Step 2: Convert to fraction form
    49,464/79,758 = 79,758/x
  3. Step 3: Cross multiply
    49,464x = 79,758 × 79,758
  4. Step 4: Simplify right side
    49,464x = 6,361,338,564
  5. Step 5: Solve for x
    x = 6,361,338,564/49,464
  6. Step 6: Final answer
    x = 128,605.42

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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.