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Finding the Third Proportional to 55,772 and 86,952

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Solution

The third proportional to 55,772 and 86,952 is: 135,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,772 : 86,952 = 86,952 : x
  2. Step 2: Convert to fraction form
    55,772/86,952 = 86,952/x
  3. Step 3: Cross multiply
    55,772x = 86,952 × 86,952
  4. Step 4: Simplify right side
    55,772x = 7,560,650,304
  5. Step 5: Solve for x
    x = 7,560,650,304/55,772
  6. Step 6: Final answer
    x = 135,563.55

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.