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Finding the Third Proportional to 4,877 and 5,579

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Solution

The third proportional to 4,877 and 5,579 is: 6,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877 : 5,579 = 5,579 : x
  2. Step 2: Convert to fraction form
    4,877/5,579 = 5,579/x
  3. Step 3: Cross multiply
    4,877x = 5,579 × 5,579
  4. Step 4: Simplify right side
    4,877x = 31,125,241
  5. Step 5: Solve for x
    x = 31,125,241/4,877
  6. Step 6: Final answer
    x = 6,382.05

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.