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Finding the Third Proportional to 47,028 and 66,870

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Solution

The third proportional to 47,028 and 66,870 is: 95,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,028 : 66,870 = 66,870 : x
  2. Step 2: Convert to fraction form
    47,028/66,870 = 66,870/x
  3. Step 3: Cross multiply
    47,028x = 66,870 × 66,870
  4. Step 4: Simplify right side
    47,028x = 4,471,596,900
  5. Step 5: Solve for x
    x = 4,471,596,900/47,028
  6. Step 6: Final answer
    x = 95,083.71

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.