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Finding the Third Proportional to 17,268.19 and 20,422.13

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Solution

The third proportional to 17,268.19 and 20,422.13 is: 24,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,268.19 : 20,422.13 = 20,422.13 : x
  2. Step 2: Convert to fraction form
    17,268.19/20,422.13 = 20,422.13/x
  3. Step 3: Cross multiply
    17,268.19x = 20,422.13 × 20,422.13
  4. Step 4: Simplify right side
    17,268.19x = 417,063,189.52
  5. Step 5: Solve for x
    x = 417,063,189.52/17,268.19
  6. Step 6: Final answer
    x = 24,152.11

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.