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Finding the Third Proportional to 16,247 and 35,430

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Solution

The third proportional to 16,247 and 35,430 is: 77,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,247 : 35,430 = 35,430 : x
  2. Step 2: Convert to fraction form
    16,247/35,430 = 35,430/x
  3. Step 3: Cross multiply
    16,247x = 35,430 × 35,430
  4. Step 4: Simplify right side
    16,247x = 1,255,284,900
  5. Step 5: Solve for x
    x = 1,255,284,900/16,247
  6. Step 6: Final answer
    x = 77,262.57

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.