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Finding the Third Proportional to 2,118 and 4,533

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Solution

The third proportional to 2,118 and 4,533 is: 9,701.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118 : 4,533 = 4,533 : x
  2. Step 2: Convert to fraction form
    2,118/4,533 = 4,533/x
  3. Step 3: Cross multiply
    2,118x = 4,533 × 4,533
  4. Step 4: Simplify right side
    2,118x = 20,548,089
  5. Step 5: Solve for x
    x = 20,548,089/2,118
  6. Step 6: Final answer
    x = 9,701.65

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.