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Finding the Third Proportional to 4,642 and 6,971

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Solution

The third proportional to 4,642 and 6,971 is: 10,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642 : 6,971 = 6,971 : x
  2. Step 2: Convert to fraction form
    4,642/6,971 = 6,971/x
  3. Step 3: Cross multiply
    4,642x = 6,971 × 6,971
  4. Step 4: Simplify right side
    4,642x = 48,594,841
  5. Step 5: Solve for x
    x = 48,594,841/4,642
  6. Step 6: Final answer
    x = 10,468.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.