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Finding the Third Proportional to 2,386 and 3,687

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Solution

The third proportional to 2,386 and 3,687 is: 5,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386 : 3,687 = 3,687 : x
  2. Step 2: Convert to fraction form
    2,386/3,687 = 3,687/x
  3. Step 3: Cross multiply
    2,386x = 3,687 × 3,687
  4. Step 4: Simplify right side
    2,386x = 13,593,969
  5. Step 5: Solve for x
    x = 13,593,969/2,386
  6. Step 6: Final answer
    x = 5,697.39

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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.