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Finding the Third Proportional to 5,418 and 5,910

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Solution

The third proportional to 5,418 and 5,910 is: 6,446.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418 : 5,910 = 5,910 : x
  2. Step 2: Convert to fraction form
    5,418/5,910 = 5,910/x
  3. Step 3: Cross multiply
    5,418x = 5,910 × 5,910
  4. Step 4: Simplify right side
    5,418x = 34,928,100
  5. Step 5: Solve for x
    x = 34,928,100/5,418
  6. Step 6: Final answer
    x = 6,446.68

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1.5x scale

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.