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Finding the Third Proportional to 6,890.06 and 10,455.96

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Solution

The third proportional to 6,890.06 and 10,455.96 is: 15,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.06 : 10,455.96 = 10,455.96 : x
  2. Step 2: Convert to fraction form
    6,890.06/10,455.96 = 10,455.96/x
  3. Step 3: Cross multiply
    6,890.06x = 10,455.96 × 10,455.96
  4. Step 4: Simplify right side
    6,890.06x = 109,327,119.13
  5. Step 5: Solve for x
    x = 109,327,119.13/6,890.06
  6. Step 6: Final answer
    x = 15,867.36

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.