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Finding the Third Proportional to 8,958 and 19,470.75

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Solution

The third proportional to 8,958 and 19,470.75 is: 42,320.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958 : 19,470.75 = 19,470.75 : x
  2. Step 2: Convert to fraction form
    8,958/19,470.75 = 19,470.75/x
  3. Step 3: Cross multiply
    8,958x = 19,470.75 × 19,470.75
  4. Step 4: Simplify right side
    8,958x = 379,110,105.56
  5. Step 5: Solve for x
    x = 379,110,105.56/8,958
  6. Step 6: Final answer
    x = 42,320.84

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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.