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Finding the Third Proportional to 49,880 and 76,664

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Solution

The third proportional to 49,880 and 76,664 is: 117,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,880 : 76,664 = 76,664 : x
  2. Step 2: Convert to fraction form
    49,880/76,664 = 76,664/x
  3. Step 3: Cross multiply
    49,880x = 76,664 × 76,664
  4. Step 4: Simplify right side
    49,880x = 5,877,368,896
  5. Step 5: Solve for x
    x = 5,877,368,896/49,880
  6. Step 6: Final answer
    x = 117,830.17

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.