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Finding the Third Proportional to 4,661 and 5,471

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Solution

The third proportional to 4,661 and 5,471 is: 6,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661 : 5,471 = 5,471 : x
  2. Step 2: Convert to fraction form
    4,661/5,471 = 5,471/x
  3. Step 3: Cross multiply
    4,661x = 5,471 × 5,471
  4. Step 4: Simplify right side
    4,661x = 29,931,841
  5. Step 5: Solve for x
    x = 29,931,841/4,661
  6. Step 6: Final answer
    x = 6,421.76

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.