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Finding the Third Proportional to 20,964.45 and 45,388.79

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Solution

The third proportional to 20,964.45 and 45,388.79 is: 98,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.45 : 45,388.79 = 45,388.79 : x
  2. Step 2: Convert to fraction form
    20,964.45/45,388.79 = 45,388.79/x
  3. Step 3: Cross multiply
    20,964.45x = 45,388.79 × 45,388.79
  4. Step 4: Simplify right side
    20,964.45x = 2,060,142,527.16
  5. Step 5: Solve for x
    x = 2,060,142,527.16/20,964.45
  6. Step 6: Final answer
    x = 98,268.40

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.