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Finding the Third Proportional to 5,621 and 10,750

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Solution

The third proportional to 5,621 and 10,750 is: 20,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621 : 10,750 = 10,750 : x
  2. Step 2: Convert to fraction form
    5,621/10,750 = 10,750/x
  3. Step 3: Cross multiply
    5,621x = 10,750 × 10,750
  4. Step 4: Simplify right side
    5,621x = 115,562,500
  5. Step 5: Solve for x
    x = 115,562,500/5,621
  6. Step 6: Final answer
    x = 20,559.06

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.