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Finding the Third Proportional to 4,379.06 and 9,372.94

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Solution

The third proportional to 4,379.06 and 9,372.94 is: 20,061.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,379.06 : 9,372.94 = 9,372.94 : x
  2. Step 2: Convert to fraction form
    4,379.06/9,372.94 = 9,372.94/x
  3. Step 3: Cross multiply
    4,379.06x = 9,372.94 × 9,372.94
  4. Step 4: Simplify right side
    4,379.06x = 87,851,957.38
  5. Step 5: Solve for x
    x = 87,851,957.38/4,379.06
  6. Step 6: Final answer
    x = 20,061.82

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.