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Finding the Third Proportional to 752 and 1,102

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Solution

The third proportional to 752 and 1,102 is: 1,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    752 : 1,102 = 1,102 : x
  2. Step 2: Convert to fraction form
    752/1,102 = 1,102/x
  3. Step 3: Cross multiply
    752x = 1,102 × 1,102
  4. Step 4: Simplify right side
    752x = 1,214,404
  5. Step 5: Solve for x
    x = 1,214,404/752
  6. Step 6: Final answer
    x = 1,614.90

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.