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Finding the Third Proportional to 49,816 and 74,911

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Solution

The third proportional to 49,816 and 74,911 is: 112,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,816 : 74,911 = 74,911 : x
  2. Step 2: Convert to fraction form
    49,816/74,911 = 74,911/x
  3. Step 3: Cross multiply
    49,816x = 74,911 × 74,911
  4. Step 4: Simplify right side
    49,816x = 5,611,657,921
  5. Step 5: Solve for x
    x = 5,611,657,921/49,816
  6. Step 6: Final answer
    x = 112,647.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.