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Finding the Third Proportional to 47,686 and 75,492

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Solution

The third proportional to 47,686 and 75,492 is: 119,511.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,686 : 75,492 = 75,492 : x
  2. Step 2: Convert to fraction form
    47,686/75,492 = 75,492/x
  3. Step 3: Cross multiply
    47,686x = 75,492 × 75,492
  4. Step 4: Simplify right side
    47,686x = 5,699,042,064
  5. Step 5: Solve for x
    x = 5,699,042,064/47,686
  6. Step 6: Final answer
    x = 119,511.85

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.