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Finding the Third Proportional to 3,322.88 and 7,191.75

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Solution

The third proportional to 3,322.88 and 7,191.75 is: 15,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.88 : 7,191.75 = 7,191.75 : x
  2. Step 2: Convert to fraction form
    3,322.88/7,191.75 = 7,191.75/x
  3. Step 3: Cross multiply
    3,322.88x = 7,191.75 × 7,191.75
  4. Step 4: Simplify right side
    3,322.88x = 51,721,268.06
  5. Step 5: Solve for x
    x = 51,721,268.06/3,322.88
  6. Step 6: Final answer
    x = 15,565.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.