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Finding the Third Proportional to 6,979.61 and 11,027.55

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Solution

The third proportional to 6,979.61 and 11,027.55 is: 17,423.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.61 : 11,027.55 = 11,027.55 : x
  2. Step 2: Convert to fraction form
    6,979.61/11,027.55 = 11,027.55/x
  3. Step 3: Cross multiply
    6,979.61x = 11,027.55 × 11,027.55
  4. Step 4: Simplify right side
    6,979.61x = 121,606,833.16
  5. Step 5: Solve for x
    x = 121,606,833.16/6,979.61
  6. Step 6: Final answer
    x = 17,423.17

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.