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Finding the Third Proportional to 20,460 and 48,159

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Solution

The third proportional to 20,460 and 48,159 is: 113,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460 : 48,159 = 48,159 : x
  2. Step 2: Convert to fraction form
    20,460/48,159 = 48,159/x
  3. Step 3: Cross multiply
    20,460x = 48,159 × 48,159
  4. Step 4: Simplify right side
    20,460x = 2,319,289,281
  5. Step 5: Solve for x
    x = 2,319,289,281/20,460
  6. Step 6: Final answer
    x = 113,357.25

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.