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Finding the Third Proportional to 49,582 and 76,678

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Solution

The third proportional to 49,582 and 76,678 is: 118,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,582 : 76,678 = 76,678 : x
  2. Step 2: Convert to fraction form
    49,582/76,678 = 76,678/x
  3. Step 3: Cross multiply
    49,582x = 76,678 × 76,678
  4. Step 4: Simplify right side
    49,582x = 5,879,515,684
  5. Step 5: Solve for x
    x = 5,879,515,684/49,582
  6. Step 6: Final answer
    x = 118,581.66

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.