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Finding the Third Proportional to 254.81 and 562.22

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Solution

The third proportional to 254.81 and 562.22 is: 1,240.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.81 : 562.22 = 562.22 : x
  2. Step 2: Convert to fraction form
    254.81/562.22 = 562.22/x
  3. Step 3: Cross multiply
    254.81x = 562.22 × 562.22
  4. Step 4: Simplify right side
    254.81x = 316,089.92
  5. Step 5: Solve for x
    x = 316,089.92/254.81
  6. Step 6: Final answer
    x = 1,240.48

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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.