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Finding the Third Proportional to 60,048 and 90,072

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Solution

The third proportional to 60,048 and 90,072 is: 135,108

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,048 : 90,072 = 90,072 : x
  2. Step 2: Convert to fraction form
    60,048/90,072 = 90,072/x
  3. Step 3: Cross multiply
    60,048x = 90,072 × 90,072
  4. Step 4: Simplify right side
    60,048x = 8,112,965,184
  5. Step 5: Solve for x
    x = 8,112,965,184/60,048
  6. Step 6: Final answer
    x = 135,108

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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.