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Finding the Third Proportional to 591.75 and 905.06

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Solution

The third proportional to 591.75 and 905.06 is: 1,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.75 : 905.06 = 905.06 : x
  2. Step 2: Convert to fraction form
    591.75/905.06 = 905.06/x
  3. Step 3: Cross multiply
    591.75x = 905.06 × 905.06
  4. Step 4: Simplify right side
    591.75x = 819,138.13
  5. Step 5: Solve for x
    x = 819,138.13/591.75
  6. Step 6: Final answer
    x = 1,384.26

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.