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Finding the Third Proportional to 45,272 and 70,496

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Solution

The third proportional to 45,272 and 70,496 is: 109,773.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,272 : 70,496 = 70,496 : x
  2. Step 2: Convert to fraction form
    45,272/70,496 = 70,496/x
  3. Step 3: Cross multiply
    45,272x = 70,496 × 70,496
  4. Step 4: Simplify right side
    45,272x = 4,969,686,016
  5. Step 5: Solve for x
    x = 4,969,686,016/45,272
  6. Step 6: Final answer
    x = 109,773.94

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.