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Finding the Third Proportional to 4,624 and 7,948

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Solution

The third proportional to 4,624 and 7,948 is: 13,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,624 : 7,948 = 7,948 : x
  2. Step 2: Convert to fraction form
    4,624/7,948 = 7,948/x
  3. Step 3: Cross multiply
    4,624x = 7,948 × 7,948
  4. Step 4: Simplify right side
    4,624x = 63,170,704
  5. Step 5: Solve for x
    x = 63,170,704/4,624
  6. Step 6: Final answer
    x = 13,661.48

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.