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Finding the Third Proportional to 18,316.13 and 26,836.31

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Solution

The third proportional to 18,316.13 and 26,836.31 is: 39,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,316.13 : 26,836.31 = 26,836.31 : x
  2. Step 2: Convert to fraction form
    18,316.13/26,836.31 = 26,836.31/x
  3. Step 3: Cross multiply
    18,316.13x = 26,836.31 × 26,836.31
  4. Step 4: Simplify right side
    18,316.13x = 720,187,668.60
  5. Step 5: Solve for x
    x = 720,187,668.60/18,316.13
  6. Step 6: Final answer
    x = 39,319.87

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.