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Finding the Third Proportional to 4,633 and 9,989

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Solution

The third proportional to 4,633 and 9,989 is: 21,536.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,633 : 9,989 = 9,989 : x
  2. Step 2: Convert to fraction form
    4,633/9,989 = 9,989/x
  3. Step 3: Cross multiply
    4,633x = 9,989 × 9,989
  4. Step 4: Simplify right side
    4,633x = 99,780,121
  5. Step 5: Solve for x
    x = 99,780,121/4,633
  6. Step 6: Final answer
    x = 21,536.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.