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Finding the Third Proportional to 5,542 and 8,521

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Solution

The third proportional to 5,542 and 8,521 is: 13,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,542 : 8,521 = 8,521 : x
  2. Step 2: Convert to fraction form
    5,542/8,521 = 8,521/x
  3. Step 3: Cross multiply
    5,542x = 8,521 × 8,521
  4. Step 4: Simplify right side
    5,542x = 72,607,441
  5. Step 5: Solve for x
    x = 72,607,441/5,542
  6. Step 6: Final answer
    x = 13,101.31

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.