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Finding the Third Proportional to 4,764 and 9,960

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Solution

The third proportional to 4,764 and 9,960 is: 20,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,764 : 9,960 = 9,960 : x
  2. Step 2: Convert to fraction form
    4,764/9,960 = 9,960/x
  3. Step 3: Cross multiply
    4,764x = 9,960 × 9,960
  4. Step 4: Simplify right side
    4,764x = 99,201,600
  5. Step 5: Solve for x
    x = 99,201,600/4,764
  6. Step 6: Final answer
    x = 20,823.17

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.