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Finding the Third Proportional to 7,476 and 17,742

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Solution

The third proportional to 7,476 and 17,742 is: 42,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,476 : 17,742 = 17,742 : x
  2. Step 2: Convert to fraction form
    7,476/17,742 = 17,742/x
  3. Step 3: Cross multiply
    7,476x = 17,742 × 17,742
  4. Step 4: Simplify right side
    7,476x = 314,778,564
  5. Step 5: Solve for x
    x = 314,778,564/7,476
  6. Step 6: Final answer
    x = 42,105.21

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.