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Finding the Third Proportional to 47,578 and 66,582

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Solution

The third proportional to 47,578 and 66,582 is: 93,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,578 : 66,582 = 66,582 : x
  2. Step 2: Convert to fraction form
    47,578/66,582 = 66,582/x
  3. Step 3: Cross multiply
    47,578x = 66,582 × 66,582
  4. Step 4: Simplify right side
    47,578x = 4,433,162,724
  5. Step 5: Solve for x
    x = 4,433,162,724/47,578
  6. Step 6: Final answer
    x = 93,176.74

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.