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Finding the Third Proportional to 765 and 958.50

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Solution

The third proportional to 765 and 958.50 is: 1,200.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    765 : 958.50 = 958.50 : x
  2. Step 2: Convert to fraction form
    765/958.50 = 958.50/x
  3. Step 3: Cross multiply
    765x = 958.50 × 958.50
  4. Step 4: Simplify right side
    765x = 918,722.25
  5. Step 5: Solve for x
    x = 918,722.25/765
  6. Step 6: Final answer
    x = 1,200.94

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Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.