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Finding the Third Proportional to 4,357.50 and 6,555

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Solution

The third proportional to 4,357.50 and 6,555 is: 9,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,357.50 : 6,555 = 6,555 : x
  2. Step 2: Convert to fraction form
    4,357.50/6,555 = 6,555/x
  3. Step 3: Cross multiply
    4,357.50x = 6,555 × 6,555
  4. Step 4: Simplify right side
    4,357.50x = 42,968,025
  5. Step 5: Solve for x
    x = 42,968,025/4,357.50
  6. Step 6: Final answer
    x = 9,860.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.