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Finding the Third Proportional to 2,607 and 3,985

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Solution

The third proportional to 2,607 and 3,985 is: 6,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607 : 3,985 = 3,985 : x
  2. Step 2: Convert to fraction form
    2,607/3,985 = 3,985/x
  3. Step 3: Cross multiply
    2,607x = 3,985 × 3,985
  4. Step 4: Simplify right side
    2,607x = 15,880,225
  5. Step 5: Solve for x
    x = 15,880,225/2,607
  6. Step 6: Final answer
    x = 6,091.38

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.