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Finding the Third Proportional to 3,898.13 and 6,235.31

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Solution

The third proportional to 3,898.13 and 6,235.31 is: 9,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.13 : 6,235.31 = 6,235.31 : x
  2. Step 2: Convert to fraction form
    3,898.13/6,235.31 = 6,235.31/x
  3. Step 3: Cross multiply
    3,898.13x = 6,235.31 × 6,235.31
  4. Step 4: Simplify right side
    3,898.13x = 38,879,121.97
  5. Step 5: Solve for x
    x = 38,879,121.97/3,898.13
  6. Step 6: Final answer
    x = 9,973.80

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.