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Finding the Third Proportional to 2,607 and 5,511

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Solution

The third proportional to 2,607 and 5,511 is: 11,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607 : 5,511 = 5,511 : x
  2. Step 2: Convert to fraction form
    2,607/5,511 = 5,511/x
  3. Step 3: Cross multiply
    2,607x = 5,511 × 5,511
  4. Step 4: Simplify right side
    2,607x = 30,371,121
  5. Step 5: Solve for x
    x = 30,371,121/2,607
  6. Step 6: Final answer
    x = 11,649.84

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.