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Finding the Third Proportional to 55,880 and 121,624

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Solution

The third proportional to 55,880 and 121,624 is: 264,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,880 : 121,624 = 121,624 : x
  2. Step 2: Convert to fraction form
    55,880/121,624 = 121,624/x
  3. Step 3: Cross multiply
    55,880x = 121,624 × 121,624
  4. Step 4: Simplify right side
    55,880x = 14,792,397,376
  5. Step 5: Solve for x
    x = 14,792,397,376/55,880
  6. Step 6: Final answer
    x = 264,717.20

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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.