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Finding the Third Proportional to 4,918.50 and 9,607.50

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Solution

The third proportional to 4,918.50 and 9,607.50 is: 18,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.50 : 9,607.50 = 9,607.50 : x
  2. Step 2: Convert to fraction form
    4,918.50/9,607.50 = 9,607.50/x
  3. Step 3: Cross multiply
    4,918.50x = 9,607.50 × 9,607.50
  4. Step 4: Simplify right side
    4,918.50x = 92,304,056.25
  5. Step 5: Solve for x
    x = 92,304,056.25/4,918.50
  6. Step 6: Final answer
    x = 18,766.71

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.