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Finding the Third Proportional to 4,385 and 9,392

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Solution

The third proportional to 4,385 and 9,392 is: 20,116.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385 : 9,392 = 9,392 : x
  2. Step 2: Convert to fraction form
    4,385/9,392 = 9,392/x
  3. Step 3: Cross multiply
    4,385x = 9,392 × 9,392
  4. Step 4: Simplify right side
    4,385x = 88,209,664
  5. Step 5: Solve for x
    x = 88,209,664/4,385
  6. Step 6: Final answer
    x = 20,116.23

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.