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Finding the Third Proportional to 4,338 and 9,540

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Solution

The third proportional to 4,338 and 9,540 is: 20,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,338 : 9,540 = 9,540 : x
  2. Step 2: Convert to fraction form
    4,338/9,540 = 9,540/x
  3. Step 3: Cross multiply
    4,338x = 9,540 × 9,540
  4. Step 4: Simplify right side
    4,338x = 91,011,600
  5. Step 5: Solve for x
    x = 91,011,600/4,338
  6. Step 6: Final answer
    x = 20,980.08

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.