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Finding the Third Proportional to 19,740.38 and 43,171.13

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Solution

The third proportional to 19,740.38 and 43,171.13 is: 94,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.38 : 43,171.13 = 43,171.13 : x
  2. Step 2: Convert to fraction form
    19,740.38/43,171.13 = 43,171.13/x
  3. Step 3: Cross multiply
    19,740.38x = 43,171.13 × 43,171.13
  4. Step 4: Simplify right side
    19,740.38x = 1,863,746,033.77
  5. Step 5: Solve for x
    x = 1,863,746,033.77/19,740.38
  6. Step 6: Final answer
    x = 94,412.90

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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.