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Finding the Third Proportional to 4,330 and 7,423

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Solution

The third proportional to 4,330 and 7,423 is: 12,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,330 : 7,423 = 7,423 : x
  2. Step 2: Convert to fraction form
    4,330/7,423 = 7,423/x
  3. Step 3: Cross multiply
    4,330x = 7,423 × 7,423
  4. Step 4: Simplify right side
    4,330x = 55,100,929
  5. Step 5: Solve for x
    x = 55,100,929/4,330
  6. Step 6: Final answer
    x = 12,725.39

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.