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Finding the Third Proportional to 6,730 and 7,434

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Solution

The third proportional to 6,730 and 7,434 is: 8,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,730 : 7,434 = 7,434 : x
  2. Step 2: Convert to fraction form
    6,730/7,434 = 7,434/x
  3. Step 3: Cross multiply
    6,730x = 7,434 × 7,434
  4. Step 4: Simplify right side
    6,730x = 55,264,356
  5. Step 5: Solve for x
    x = 55,264,356/6,730
  6. Step 6: Final answer
    x = 8,211.64

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.