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Finding the Third Proportional to 756.75 and 1,012.13

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Solution

The third proportional to 756.75 and 1,012.13 is: 1,353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    756.75 : 1,012.13 = 1,012.13 : x
  2. Step 2: Convert to fraction form
    756.75/1,012.13 = 1,012.13/x
  3. Step 3: Cross multiply
    756.75x = 1,012.13 × 1,012.13
  4. Step 4: Simplify right side
    756.75x = 1,024,397.02
  5. Step 5: Solve for x
    x = 1,024,397.02/756.75
  6. Step 6: Final answer
    x = 1,353.68

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.