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Finding the Third Proportional to 54,222 and 86,577

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Solution

The third proportional to 54,222 and 86,577 is: 138,238.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,222 : 86,577 = 86,577 : x
  2. Step 2: Convert to fraction form
    54,222/86,577 = 86,577/x
  3. Step 3: Cross multiply
    54,222x = 86,577 × 86,577
  4. Step 4: Simplify right side
    54,222x = 7,495,576,929
  5. Step 5: Solve for x
    x = 7,495,576,929/54,222
  6. Step 6: Final answer
    x = 138,238.67

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.