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Finding the Third Proportional to 19,131.98 and 28,717.19

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Solution

The third proportional to 19,131.98 and 28,717.19 is: 43,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.98 : 28,717.19 = 28,717.19 : x
  2. Step 2: Convert to fraction form
    19,131.98/28,717.19 = 28,717.19/x
  3. Step 3: Cross multiply
    19,131.98x = 28,717.19 × 28,717.19
  4. Step 4: Simplify right side
    19,131.98x = 824,676,970.09
  5. Step 5: Solve for x
    x = 824,676,970.09/19,131.98
  6. Step 6: Final answer
    x = 43,104.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.