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Finding the Third Proportional to 7,043.20 and 14,359.78

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Solution

The third proportional to 7,043.20 and 14,359.78 is: 29,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043.20 : 14,359.78 = 14,359.78 : x
  2. Step 2: Convert to fraction form
    7,043.20/14,359.78 = 14,359.78/x
  3. Step 3: Cross multiply
    7,043.20x = 14,359.78 × 14,359.78
  4. Step 4: Simplify right side
    7,043.20x = 206,203,317.55
  5. Step 5: Solve for x
    x = 206,203,317.55/7,043.20
  6. Step 6: Final answer
    x = 29,276.92

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.