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Finding the Third Proportional to 9,100.13 and 19,891.13

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Solution

The third proportional to 9,100.13 and 19,891.13 is: 43,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,100.13 : 19,891.13 = 19,891.13 : x
  2. Step 2: Convert to fraction form
    9,100.13/19,891.13 = 19,891.13/x
  3. Step 3: Cross multiply
    9,100.13x = 19,891.13 × 19,891.13
  4. Step 4: Simplify right side
    9,100.13x = 395,656,853.77
  5. Step 5: Solve for x
    x = 395,656,853.77/9,100.13
  6. Step 6: Final answer
    x = 43,478.18

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.