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Finding the Third Proportional to 7,434 and 14,680

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Solution

The third proportional to 7,434 and 14,680 is: 28,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,434 : 14,680 = 14,680 : x
  2. Step 2: Convert to fraction form
    7,434/14,680 = 14,680/x
  3. Step 3: Cross multiply
    7,434x = 14,680 × 14,680
  4. Step 4: Simplify right side
    7,434x = 215,502,400
  5. Step 5: Solve for x
    x = 215,502,400/7,434
  6. Step 6: Final answer
    x = 28,988.75

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.