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Finding the Third Proportional to 4,129 and 5,047

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Solution

The third proportional to 4,129 and 5,047 is: 6,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129 : 5,047 = 5,047 : x
  2. Step 2: Convert to fraction form
    4,129/5,047 = 5,047/x
  3. Step 3: Cross multiply
    4,129x = 5,047 × 5,047
  4. Step 4: Simplify right side
    4,129x = 25,472,209
  5. Step 5: Solve for x
    x = 25,472,209/4,129
  6. Step 6: Final answer
    x = 6,169.10

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.