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Finding the Third Proportional to 48,072 and 77,232

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Solution

The third proportional to 48,072 and 77,232 is: 124,080.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,072 : 77,232 = 77,232 : x
  2. Step 2: Convert to fraction form
    48,072/77,232 = 77,232/x
  3. Step 3: Cross multiply
    48,072x = 77,232 × 77,232
  4. Step 4: Simplify right side
    48,072x = 5,964,781,824
  5. Step 5: Solve for x
    x = 5,964,781,824/48,072
  6. Step 6: Final answer
    x = 124,080.17

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.