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Finding the Third Proportional to 4,782.38 and 7,381.13

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Solution

The third proportional to 4,782.38 and 7,381.13 is: 11,392.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.38 : 7,381.13 = 7,381.13 : x
  2. Step 2: Convert to fraction form
    4,782.38/7,381.13 = 7,381.13/x
  3. Step 3: Cross multiply
    4,782.38x = 7,381.13 × 7,381.13
  4. Step 4: Simplify right side
    4,782.38x = 54,481,006.27
  5. Step 5: Solve for x
    x = 54,481,006.27/4,782.38
  6. Step 6: Final answer
    x = 11,392.04

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.