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Finding the Third Proportional to 48,440 and 74,816

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Solution

The third proportional to 48,440 and 74,816 is: 115,553.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,440 : 74,816 = 74,816 : x
  2. Step 2: Convert to fraction form
    48,440/74,816 = 74,816/x
  3. Step 3: Cross multiply
    48,440x = 74,816 × 74,816
  4. Step 4: Simplify right side
    48,440x = 5,597,433,856
  5. Step 5: Solve for x
    x = 5,597,433,856/48,440
  6. Step 6: Final answer
    x = 115,553.96

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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.