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Finding the Third Proportional to 45,949 and 70,939

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Solution

The third proportional to 45,949 and 70,939 is: 109,520.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,949 : 70,939 = 70,939 : x
  2. Step 2: Convert to fraction form
    45,949/70,939 = 70,939/x
  3. Step 3: Cross multiply
    45,949x = 70,939 × 70,939
  4. Step 4: Simplify right side
    45,949x = 5,032,341,721
  5. Step 5: Solve for x
    x = 5,032,341,721/45,949
  6. Step 6: Final answer
    x = 109,520.16

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.