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Finding the Third Proportional to 4,750 and 7,085

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Solution

The third proportional to 4,750 and 7,085 is: 10,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750 : 7,085 = 7,085 : x
  2. Step 2: Convert to fraction form
    4,750/7,085 = 7,085/x
  3. Step 3: Cross multiply
    4,750x = 7,085 × 7,085
  4. Step 4: Simplify right side
    4,750x = 50,197,225
  5. Step 5: Solve for x
    x = 50,197,225/4,750
  6. Step 6: Final answer
    x = 10,567.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.