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Finding the Third Proportional to 3,098 and 4,047

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Solution

The third proportional to 3,098 and 4,047 is: 5,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098 : 4,047 = 4,047 : x
  2. Step 2: Convert to fraction form
    3,098/4,047 = 4,047/x
  3. Step 3: Cross multiply
    3,098x = 4,047 × 4,047
  4. Step 4: Simplify right side
    3,098x = 16,378,209
  5. Step 5: Solve for x
    x = 16,378,209/3,098
  6. Step 6: Final answer
    x = 5,286.70

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.