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Finding the Third Proportional to 6,502.78 and 13,991.91

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Solution

The third proportional to 6,502.78 and 13,991.91 is: 30,106.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,502.78 : 13,991.91 = 13,991.91 : x
  2. Step 2: Convert to fraction form
    6,502.78/13,991.91 = 13,991.91/x
  3. Step 3: Cross multiply
    6,502.78x = 13,991.91 × 13,991.91
  4. Step 4: Simplify right side
    6,502.78x = 195,773,440.51
  5. Step 5: Solve for x
    x = 195,773,440.51/6,502.78
  6. Step 6: Final answer
    x = 30,106.11

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.