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Finding the Third Proportional to 7,582 and 11,379

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Solution

The third proportional to 7,582 and 11,379 is: 17,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,582 : 11,379 = 11,379 : x
  2. Step 2: Convert to fraction form
    7,582/11,379 = 11,379/x
  3. Step 3: Cross multiply
    7,582x = 11,379 × 11,379
  4. Step 4: Simplify right side
    7,582x = 129,481,641
  5. Step 5: Solve for x
    x = 129,481,641/7,582
  6. Step 6: Final answer
    x = 17,077.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.