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Finding the Third Proportional to 2,949.50 and 4,579

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Solution

The third proportional to 2,949.50 and 4,579 is: 7,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.50 : 4,579 = 4,579 : x
  2. Step 2: Convert to fraction form
    2,949.50/4,579 = 4,579/x
  3. Step 3: Cross multiply
    2,949.50x = 4,579 × 4,579
  4. Step 4: Simplify right side
    2,949.50x = 20,967,241
  5. Step 5: Solve for x
    x = 20,967,241/2,949.50
  6. Step 6: Final answer
    x = 7,108.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.