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Finding the Third Proportional to 21,742.75 and 47,203.25

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Solution

The third proportional to 21,742.75 and 47,203.25 is: 102,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.75 : 47,203.25 = 47,203.25 : x
  2. Step 2: Convert to fraction form
    21,742.75/47,203.25 = 47,203.25/x
  3. Step 3: Cross multiply
    21,742.75x = 47,203.25 × 47,203.25
  4. Step 4: Simplify right side
    21,742.75x = 2,228,146,810.56
  5. Step 5: Solve for x
    x = 2,228,146,810.56/21,742.75
  6. Step 6: Final answer
    x = 102,477.69

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.