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Finding the Third Proportional to 64,213 and 85,203

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Solution

The third proportional to 64,213 and 85,203 is: 113,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,213 : 85,203 = 85,203 : x
  2. Step 2: Convert to fraction form
    64,213/85,203 = 85,203/x
  3. Step 3: Cross multiply
    64,213x = 85,203 × 85,203
  4. Step 4: Simplify right side
    64,213x = 7,259,551,209
  5. Step 5: Solve for x
    x = 7,259,551,209/64,213
  6. Step 6: Final answer
    x = 113,054.23

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.