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Finding the Third Proportional to 756.75 and 1,059.75

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Solution

The third proportional to 756.75 and 1,059.75 is: 1,484.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    756.75 : 1,059.75 = 1,059.75 : x
  2. Step 2: Convert to fraction form
    756.75/1,059.75 = 1,059.75/x
  3. Step 3: Cross multiply
    756.75x = 1,059.75 × 1,059.75
  4. Step 4: Simplify right side
    756.75x = 1,123,070.06
  5. Step 5: Solve for x
    x = 1,123,070.06/756.75
  6. Step 6: Final answer
    x = 1,484.07

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.