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Finding the Third Proportional to 542.81 and 1,202.06

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Solution

The third proportional to 542.81 and 1,202.06 is: 2,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.81 : 1,202.06 = 1,202.06 : x
  2. Step 2: Convert to fraction form
    542.81/1,202.06 = 1,202.06/x
  3. Step 3: Cross multiply
    542.81x = 1,202.06 × 1,202.06
  4. Step 4: Simplify right side
    542.81x = 1,444,954.25
  5. Step 5: Solve for x
    x = 1,444,954.25/542.81
  6. Step 6: Final answer
    x = 2,661.98

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.