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Finding the Third Proportional to 43,624 and 64,620

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Solution

The third proportional to 43,624 and 64,620 is: 95,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,624 : 64,620 = 64,620 : x
  2. Step 2: Convert to fraction form
    43,624/64,620 = 64,620/x
  3. Step 3: Cross multiply
    43,624x = 64,620 × 64,620
  4. Step 4: Simplify right side
    43,624x = 4,175,744,400
  5. Step 5: Solve for x
    x = 4,175,744,400/43,624
  6. Step 6: Final answer
    x = 95,721.26

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.