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Finding the Third Proportional to 3,621 and 5,011.50

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Solution

The third proportional to 3,621 and 5,011.50 is: 6,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621 : 5,011.50 = 5,011.50 : x
  2. Step 2: Convert to fraction form
    3,621/5,011.50 = 5,011.50/x
  3. Step 3: Cross multiply
    3,621x = 5,011.50 × 5,011.50
  4. Step 4: Simplify right side
    3,621x = 25,115,132.25
  5. Step 5: Solve for x
    x = 25,115,132.25/3,621
  6. Step 6: Final answer
    x = 6,935.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.