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Finding the Third Proportional to 505.75 and 1,102

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Solution

The third proportional to 505.75 and 1,102 is: 2,401.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.75 : 1,102 = 1,102 : x
  2. Step 2: Convert to fraction form
    505.75/1,102 = 1,102/x
  3. Step 3: Cross multiply
    505.75x = 1,102 × 1,102
  4. Step 4: Simplify right side
    505.75x = 1,214,404
  5. Step 5: Solve for x
    x = 1,214,404/505.75
  6. Step 6: Final answer
    x = 2,401.19

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.