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Finding the Third Proportional to 30,648 and 48,158

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Solution

The third proportional to 30,648 and 48,158 is: 75,671.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648 : 48,158 = 48,158 : x
  2. Step 2: Convert to fraction form
    30,648/48,158 = 48,158/x
  3. Step 3: Cross multiply
    30,648x = 48,158 × 48,158
  4. Step 4: Simplify right side
    30,648x = 2,319,192,964
  5. Step 5: Solve for x
    x = 2,319,192,964/30,648
  6. Step 6: Final answer
    x = 75,671.92

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.