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Finding the Third Proportional to 21,558 and 48,156

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Solution

The third proportional to 21,558 and 48,156 is: 107,570.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558 : 48,156 = 48,156 : x
  2. Step 2: Convert to fraction form
    21,558/48,156 = 48,156/x
  3. Step 3: Cross multiply
    21,558x = 48,156 × 48,156
  4. Step 4: Simplify right side
    21,558x = 2,319,000,336
  5. Step 5: Solve for x
    x = 2,319,000,336/21,558
  6. Step 6: Final answer
    x = 107,570.29

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.