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Finding the Third Proportional to 4,696.73 and 9,989.58

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Solution

The third proportional to 4,696.73 and 9,989.58 is: 21,247.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,696.73 : 9,989.58 = 9,989.58 : x
  2. Step 2: Convert to fraction form
    4,696.73/9,989.58 = 9,989.58/x
  3. Step 3: Cross multiply
    4,696.73x = 9,989.58 × 9,989.58
  4. Step 4: Simplify right side
    4,696.73x = 99,791,671.12
  5. Step 5: Solve for x
    x = 99,791,671.12/4,696.73
  6. Step 6: Final answer
    x = 21,247.03

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.