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Finding the Third Proportional to 29,880 and 65,591

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Solution

The third proportional to 29,880 and 65,591 is: 143,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,880 : 65,591 = 65,591 : x
  2. Step 2: Convert to fraction form
    29,880/65,591 = 65,591/x
  3. Step 3: Cross multiply
    29,880x = 65,591 × 65,591
  4. Step 4: Simplify right side
    29,880x = 4,302,179,281
  5. Step 5: Solve for x
    x = 4,302,179,281/29,880
  6. Step 6: Final answer
    x = 143,981.90

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.