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Finding the Third Proportional to 4,770 and 7,579

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Solution

The third proportional to 4,770 and 7,579 is: 12,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770 : 7,579 = 7,579 : x
  2. Step 2: Convert to fraction form
    4,770/7,579 = 7,579/x
  3. Step 3: Cross multiply
    4,770x = 7,579 × 7,579
  4. Step 4: Simplify right side
    4,770x = 57,441,241
  5. Step 5: Solve for x
    x = 57,441,241/4,770
  6. Step 6: Final answer
    x = 12,042.19

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.