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Finding the Third Proportional to 6,490.13 and 13,753.55

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Solution

The third proportional to 6,490.13 and 13,753.55 is: 29,145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.13 : 13,753.55 = 13,753.55 : x
  2. Step 2: Convert to fraction form
    6,490.13/13,753.55 = 13,753.55/x
  3. Step 3: Cross multiply
    6,490.13x = 13,753.55 × 13,753.55
  4. Step 4: Simplify right side
    6,490.13x = 189,160,051.64
  5. Step 5: Solve for x
    x = 189,160,051.64/6,490.13
  6. Step 6: Final answer
    x = 29,145.83

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.