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Finding the Third Proportional to 3,911.63 and 9,161.44

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Solution

The third proportional to 3,911.63 and 9,161.44 is: 21,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.63 : 9,161.44 = 9,161.44 : x
  2. Step 2: Convert to fraction form
    3,911.63/9,161.44 = 9,161.44/x
  3. Step 3: Cross multiply
    3,911.63x = 9,161.44 × 9,161.44
  4. Step 4: Simplify right side
    3,911.63x = 83,931,937.07
  5. Step 5: Solve for x
    x = 83,931,937.07/3,911.63
  6. Step 6: Final answer
    x = 21,457.05

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.