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Finding the Third Proportional to 45,972 and 70,292

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Solution

The third proportional to 45,972 and 70,292 is: 107,477.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,972 : 70,292 = 70,292 : x
  2. Step 2: Convert to fraction form
    45,972/70,292 = 70,292/x
  3. Step 3: Cross multiply
    45,972x = 70,292 × 70,292
  4. Step 4: Simplify right side
    45,972x = 4,940,965,264
  5. Step 5: Solve for x
    x = 4,940,965,264/45,972
  6. Step 6: Final answer
    x = 107,477.71

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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.