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Finding the Third Proportional to 5,355 and 6,111

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Solution

The third proportional to 5,355 and 6,111 is: 6,973.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355 : 6,111 = 6,111 : x
  2. Step 2: Convert to fraction form
    5,355/6,111 = 6,111/x
  3. Step 3: Cross multiply
    5,355x = 6,111 × 6,111
  4. Step 4: Simplify right side
    5,355x = 37,344,321
  5. Step 5: Solve for x
    x = 37,344,321/5,355
  6. Step 6: Final answer
    x = 6,973.73

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.