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Finding the Third Proportional to 4,921 and 9,598

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Solution

The third proportional to 4,921 and 9,598 is: 18,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921 : 9,598 = 9,598 : x
  2. Step 2: Convert to fraction form
    4,921/9,598 = 9,598/x
  3. Step 3: Cross multiply
    4,921x = 9,598 × 9,598
  4. Step 4: Simplify right side
    4,921x = 92,121,604
  5. Step 5: Solve for x
    x = 92,121,604/4,921
  6. Step 6: Final answer
    x = 18,720.10

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.