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Finding the Third Proportional to 30,891.38 and 47,202.75

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Solution

The third proportional to 30,891.38 and 47,202.75 is: 72,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.38 : 47,202.75 = 47,202.75 : x
  2. Step 2: Convert to fraction form
    30,891.38/47,202.75 = 47,202.75/x
  3. Step 3: Cross multiply
    30,891.38x = 47,202.75 × 47,202.75
  4. Step 4: Simplify right side
    30,891.38x = 2,228,099,607.56
  5. Step 5: Solve for x
    x = 2,228,099,607.56/30,891.38
  6. Step 6: Final answer
    x = 72,126.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.