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Finding the Third Proportional to 6,113 and 6,644

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Solution

The third proportional to 6,113 and 6,644 is: 7,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113 : 6,644 = 6,644 : x
  2. Step 2: Convert to fraction form
    6,113/6,644 = 6,644/x
  3. Step 3: Cross multiply
    6,113x = 6,644 × 6,644
  4. Step 4: Simplify right side
    6,113x = 44,142,736
  5. Step 5: Solve for x
    x = 44,142,736/6,113
  6. Step 6: Final answer
    x = 7,221.12

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.