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Finding the Third Proportional to 47,146 and 66,830

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Solution

The third proportional to 47,146 and 66,830 is: 94,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,146 : 66,830 = 66,830 : x
  2. Step 2: Convert to fraction form
    47,146/66,830 = 66,830/x
  3. Step 3: Cross multiply
    47,146x = 66,830 × 66,830
  4. Step 4: Simplify right side
    47,146x = 4,466,248,900
  5. Step 5: Solve for x
    x = 4,466,248,900/47,146
  6. Step 6: Final answer
    x = 94,732.30

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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.