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Finding the Third Proportional to 752.63 and 1,135.69

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Solution

The third proportional to 752.63 and 1,135.69 is: 1,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.63 : 1,135.69 = 1,135.69 : x
  2. Step 2: Convert to fraction form
    752.63/1,135.69 = 1,135.69/x
  3. Step 3: Cross multiply
    752.63x = 1,135.69 × 1,135.69
  4. Step 4: Simplify right side
    752.63x = 1,289,786.10
  5. Step 5: Solve for x
    x = 1,289,786.10/752.63
  6. Step 6: Final answer
    x = 1,713.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.