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Finding the Third Proportional to 4,429.69 and 6,705.28

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Solution

The third proportional to 4,429.69 and 6,705.28 is: 10,149.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.69 : 6,705.28 = 6,705.28 : x
  2. Step 2: Convert to fraction form
    4,429.69/6,705.28 = 6,705.28/x
  3. Step 3: Cross multiply
    4,429.69x = 6,705.28 × 6,705.28
  4. Step 4: Simplify right side
    4,429.69x = 44,960,796.64
  5. Step 5: Solve for x
    x = 44,960,796.64/4,429.69
  6. Step 6: Final answer
    x = 10,149.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.