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Finding the Third Proportional to 3,402 and 7,320.38

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Solution

The third proportional to 3,402 and 7,320.38 is: 15,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402 : 7,320.38 = 7,320.38 : x
  2. Step 2: Convert to fraction form
    3,402/7,320.38 = 7,320.38/x
  3. Step 3: Cross multiply
    3,402x = 7,320.38 × 7,320.38
  4. Step 4: Simplify right side
    3,402x = 53,587,890.14
  5. Step 5: Solve for x
    x = 53,587,890.14/3,402
  6. Step 6: Final answer
    x = 15,751.88

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.