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Finding the Third Proportional to 41,070 and 45,390

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Solution

The third proportional to 41,070 and 45,390 is: 50,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,070 : 45,390 = 45,390 : x
  2. Step 2: Convert to fraction form
    41,070/45,390 = 45,390/x
  3. Step 3: Cross multiply
    41,070x = 45,390 × 45,390
  4. Step 4: Simplify right side
    41,070x = 2,060,252,100
  5. Step 5: Solve for x
    x = 2,060,252,100/41,070
  6. Step 6: Final answer
    x = 50,164.40

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.