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Finding the Third Proportional to 3,202 and 4,870

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Solution

The third proportional to 3,202 and 4,870 is: 7,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202 : 4,870 = 4,870 : x
  2. Step 2: Convert to fraction form
    3,202/4,870 = 4,870/x
  3. Step 3: Cross multiply
    3,202x = 4,870 × 4,870
  4. Step 4: Simplify right side
    3,202x = 23,716,900
  5. Step 5: Solve for x
    x = 23,716,900/3,202
  6. Step 6: Final answer
    x = 7,406.90

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.