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Finding the Third Proportional to 4,942.50 and 10,659

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Solution

The third proportional to 4,942.50 and 10,659 is: 22,987.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.50 : 10,659 = 10,659 : x
  2. Step 2: Convert to fraction form
    4,942.50/10,659 = 10,659/x
  3. Step 3: Cross multiply
    4,942.50x = 10,659 × 10,659
  4. Step 4: Simplify right side
    4,942.50x = 113,614,281
  5. Step 5: Solve for x
    x = 113,614,281/4,942.50
  6. Step 6: Final answer
    x = 22,987.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.